diff --git a/NEW b/NEW
index bc9ba2c..13b6d60 100644
--- a/NEW
+++ b/NEW
@@ -1,24 +1 @@
-What's New
-
-This is just a bug-fix/update release.
-
-    * Updated: now using compat-5.1r5;
-
-    * Improved: http.request is more robust to malformed
-      URLs (Adrian Sietsma);
-
-    * Improved: the simple http.request interface sends a
-      "Content-type: application/x-www-form-urlencoded" header
-      (William Trenker);
-
-    * Improved: http.request is robust to evil servers that
-      send inappropriate 100-continue messages (David Burgess);
-
-    * Fixed: http.request was using the old host header during
-      redirects (Florian Berger);
-
-    * Fixed: sample unix.c had fallen through the cracks
-      during development (Matthew Percival);
-
-    * Fixed: error code was not being propagated correctly
-      in ftp.lua (David Burgess). 
+Fixed case sensitivity in headers of multipart messages in smtp.message.
diff --git a/WISH b/WISH
index 146f797..e7e9c07 100644
--- a/WISH
+++ b/WISH
@@ -1,5 +1,22 @@
-... as an l-value
-tupples?
+... as an l-value to get all results of a function call?
+at least ...[i] and #...
+extend to full tuples?
+
+__and __or __not metamethods
+
+lua_tostring, lua_tonumber, lua_touseradta etc push values in stack
+__tostring,__tonumber, __touserdata metamethods are checked
+and expected to push an object of correct type on stack
+
+lua_rawtostring, lua_rawtonumber, lua_rawtouserdata don't
+push anything on stack, return data of appropriate type, 
+skip metamethods and throw error if object not of exact type
+
 package.findfile exported
-assert returns all arguments on success
-module does not pollute the global namespace
+module not polluting the global namespace
+
+coxpcall with a coroutine pool for efficiency (reusing coroutines)
+
+exception mechanism formalized? just like the package system was.
+
+a nice bitlib in the core
diff --git a/config b/config
index 3bed687..5a86f9c 100644
--- a/config
+++ b/config
@@ -15,22 +15,23 @@ UNIX_SO=unix.$(EXT)
 #------
 # Lua includes and libraries
 #
-LUAINC=-I/usr/local/include/lua50
+#LUAINC=-I/usr/local/include/lua50
 #LUAINC=-I/usr/local/include/lua5.1
+LUAINC=-Ilua-5.1.1/src
 
 #------
 # Compat-5.1 directory
 #
-COMPAT=compat-5.1r5
+#COMPAT=compat-5.1r5
 
 #------
 # Top of your Lua installation
 # Relative paths will be inside the src tree
 #
-INSTALL_TOP_SHARE=/usr/local/share/lua/5.0
-INSTALL_TOP_LIB=/usr/local/lib/lua/5.0
-#INSTALL_TOP_SHARE=/usr/local/share/lua/5.1
-#INSTALL_TOP_LIB=/usr/local/lib/lua/5.1
+#INSTALL_TOP_SHARE=/usr/local/share/lua/5.0
+#INSTALL_TOP_LIB=/usr/local/lib/lua/5.0
+INSTALL_TOP_SHARE=/usr/local/share/lua/5.1
+INSTALL_TOP_LIB=/usr/local/lib/lua/5.1
 
 INSTALL_DATA=cp
 INSTALL_EXEC=cp
@@ -39,20 +40,20 @@ INSTALL_EXEC=cp
 # Compiler and linker settings
 # for Mac OS X
 #
-#CC=gcc
-#DEF=-DLUASOCKET_DEBUG -DUNIX_HAS_SUN_LEN
-#CFLAGS= $(LUAINC) -I$(COMPAT) $(DEF) -pedantic -Wall -O2 -fno-common
-#LDFLAGS=-bundle -undefined dynamic_lookup
-#LD=export MACOSX_DEPLOYMENT_TARGET="10.3"; gcc
+CC=gcc
+DEF=-DLUASOCKET_DEBUG -DUNIX_HAS_SUN_LEN
+CFLAGS= $(LUAINC) -I$(COMPAT) $(DEF) -pedantic -Wall -O2 -fno-common
+LDFLAGS=-bundle -undefined dynamic_lookup
+LD=export MACOSX_DEPLOYMENT_TARGET="10.3"; gcc
 
 #------
 # Compiler and linker settings
 # for Linux
-CC=gcc
-DEF=-DLUASOCKET_DEBUG 
-CFLAGS= $(LUAINC) -I$(COMPAT) $(DEF) -pedantic -Wall -O2 -fpic
-LDFLAGS=-O -shared -fpic
-LD=gcc 
+#CC=gcc
+#DEF=-DLUASOCKET_DEBUG 
+#CFLAGS= $(LUAINC) -I$(COMPAT) $(DEF) -pedantic -Wall -O2 -fpic
+#LDFLAGS=-O -shared -fpic
+#LD=gcc 
 
 #------
 # End of makefile configuration
diff --git a/etc/get.lua b/etc/get.lua
index ebf3e75..09f639d 100644
--- a/etc/get.lua
+++ b/etc/get.lua
@@ -65,21 +65,23 @@ end
 -- kind of copied from luasocket's manual callback examples
 function stats(size)
     local start = socket.gettime()
+    local last = start
     local got = 0
     return function(chunk)
         -- elapsed time since start
-        local delta = socket.gettime() - start
+        local current = socket.gettime()
         if chunk then
             -- total bytes received
             got = got + string.len(chunk)   
             -- not enough time for estimate
-            if delta > 0.1 then
-                io.stderr:write("\r", gauge(got, delta, size))
+            if current - last > 1 then
+                io.stderr:write("\r", gauge(got, current - start, size))
                 io.stderr:flush()
+                last = current
             end
         else
             -- close up
-            io.stderr:write("\r", gauge(got, delta), "\n")
+            io.stderr:write("\r", gauge(got, current - start), "\n")
         end
         return chunk
     end
diff --git a/makefile b/makefile
index f77bde5..6d70039 100644
--- a/makefile
+++ b/makefile
@@ -25,7 +25,6 @@ TO_SOCKET_SHARE:= \
 	smtp.lua
 
 TO_TOP_SHARE:= \
-	$(COMPAT)/compat-5.1.lua \
 	ltn12.lua \
 	socket.lua \
 	mime.lua
diff --git a/src/http.lua b/src/http.lua
index 558f347..9d739a4 100644
--- a/src/http.lua
+++ b/src/http.lua
@@ -107,7 +107,7 @@ local metat = { __index = {} }
 
 function open(host, port, create)
     -- create socket with user connect function, or with default
-    local c = socket.try(create or socket.tcp)()
+    local c = socket.try((create or socket.tcp)())
     local h = base.setmetatable({ c = c }, metat)
     -- create finalized try
     h.try = socket.newtry(function() h:close() end)
@@ -228,7 +228,8 @@ local function adjustrequest(reqt)
     -- explicit components override url
     for i,v in base.pairs(reqt) do nreqt[i] = v end
     if nreqt.port == "" then nreqt.port = 80 end
-    socket.try(nreqt.host, "invalid host '" .. base.tostring(nreqt.host) .. "'")
+    socket.try(nreqt.host and nreqt.host ~= "", 
+        "invalid host '" .. base.tostring(nreqt.host) .. "'")
     -- compute uri if user hasn't overriden
     nreqt.uri = reqt.uri or adjusturi(nreqt)
     -- ajust host and port if there is a proxy
diff --git a/src/makefile b/src/makefile
index a21a346..b614f77 100644
--- a/src/makefile
+++ b/src/makefile
@@ -11,8 +11,9 @@ include ../config
 # Modules belonging to socket-core
 #
 
+#$(COMPAT)/compat-5.1.o \
+
 SOCKET_OBJS:= \
-	$(COMPAT)/compat-5.1.o \
 	luasocket.o \
 	timeout.o \
 	buffer.o \
@@ -29,10 +30,10 @@ SOCKET_OBJS:= \
 #------
 # Modules belonging mime-core
 #
-MIME_OBJS:=\
-	$(COMPAT)/compat-5.1.o \
-	mime.o 
+#$(COMPAT)/compat-5.1.o \
 
+MIME_OBJS:=\
+	mime.o 
 
 #------
 # Modules belonging unix (local domain sockets)
diff --git a/src/smtp.lua b/src/smtp.lua
index 2257a69..9a204d8 100644
--- a/src/smtp.lua
+++ b/src/smtp.lua
@@ -122,6 +122,15 @@ function open(server, port, create)
     return s
 end
 
+-- convert headers to lowercase
+local function lower_headers(headers)
+    local lower = {}
+    for i,v in base.pairs(headers or lower) do
+        lower[string.lower(i)] = v
+    end
+    return lower
+end
+
 ---------------------------------------------------------------------------
 -- Multipart message source
 -----------------------------------------------------------------------------
@@ -149,7 +158,7 @@ end
 local function send_multipart(mesgt)
     -- make sure we have our boundary and send headers
     local bd = newboundary()
-    local headers = mesgt.headers or {}
+    local headers = lower_headers(mesgt.headers or {})
     headers['content-type'] = headers['content-type'] or 'multipart/mixed'
     headers['content-type'] = headers['content-type'] ..
         '; boundary="' ..  bd .. '"'
@@ -176,7 +185,7 @@ end
 -- yield message body from a source
 local function send_source(mesgt)
     -- make sure we have a content-type
-    local headers = mesgt.headers or {}
+    local headers = lower_headers(mesgt.headers or {})
     headers['content-type'] = headers['content-type'] or
         'text/plain; charset="iso-8859-1"'
     send_headers(headers)
@@ -192,7 +201,7 @@ end
 -- yield message body from a string
 local function send_string(mesgt)
     -- make sure we have a content-type
-    local headers = mesgt.headers or {}
+    local headers = lower_headers(mesgt.headers or {})
     headers['content-type'] = headers['content-type'] or
         'text/plain; charset="iso-8859-1"'
     send_headers(headers)
@@ -209,20 +218,17 @@ end
 
 -- set defaul headers
 local function adjust_headers(mesgt)
-    local lower = {}
-    for i,v in base.pairs(mesgt.headers or lower) do
-        lower[string.lower(i)] = v
-    end
+    local lower = lower_headers(mesgt.headers)
     lower["date"] = lower["date"] or
         os.date("!%a, %d %b %Y %H:%M:%S ") .. (mesgt.zone or ZONE)
     lower["x-mailer"] = lower["x-mailer"] or socket._VERSION
     -- this can't be overriden
     lower["mime-version"] = "1.0"
-    mesgt.headers = lower
+    return lower
 end
 
 function message(mesgt)
-    adjust_headers(mesgt)
+    mesgt.headers = adjust_headers(mesgt)
     -- create and return message source
     local co = coroutine.create(function() send_message(mesgt) end)
     return function()
diff --git a/test/httptest.lua b/test/httptest.lua
index ac60787..dd53ec3 100644
--- a/test/httptest.lua
+++ b/test/httptest.lua
@@ -119,9 +119,8 @@ check_request(request, expect, ignore)
 
 ------------------------------------------------------------------------
 io.write("testing invalid url: ")
-local c, e = socket.connect("", 80)
-local r, re = http.request{url = host .. prefix}
-assert(r == nil and e == re) 
+local r, e = http.request{url = host .. prefix}
+assert(r == nil and e == "invalid host ''") 
 r, re = http.request(host .. prefix)
 assert(r == nil and e == re, tostring(r) ..", " .. tostring(re) .. 
     " vs " .. tostring(e)) 
diff --git a/test/testclnt.lua b/test/testclnt.lua
index cf71c9f..304cfd3 100644
--- a/test/testclnt.lua
+++ b/test/testclnt.lua
@@ -101,7 +101,7 @@ control:setoption("tcp-nodelay", true)
 
 ------------------------------------------------------------------------
 function test_methods(sock, methods)
-    for _, v in methods do
+    for _, v in pairs(methods) do
         if type(sock[v]) ~= "function" then 
             fail(sock.class .. " method '" .. v .. "' not registered") 
         end
diff --git a/test/testmesg.lua b/test/testmesg.lua
index ab85c93..04305f4 100644
--- a/test/testmesg.lua
+++ b/test/testmesg.lua
@@ -12,7 +12,7 @@ source = smtp.message {
     headers = { ['content-type'] = 'multipart/alternative' },
     body = {
         [1] = {
-            headers = { ['content-type'] = 'text/html' },
+            headers = { ['Content-type'] = 'text/html' },
             body = "<html> <body> Hi, <b>there</b>...</body> </html>"
         },
         [2] = {
@@ -60,7 +60,7 @@ source = smtp.message{
     -- chunks are loaded into memory and translation happens on the fly.
     [2] = { 
       headers = {
-        ["content-type"] = 'image/png; name="luasocket.png"',
+        ["ConTenT-tYpE"] = 'image/png; name="luasocket.png"',
         ["content-disposition"] = 'attachment; filename="luasocket.png"',
         ["content-description"] = 'a beautiful image',
         ["content-transfer-encoding"] = "BASE64"
@@ -83,10 +83,10 @@ r, e = smtp.send{
             "<diego@princeton.edu>" },
     from = "<diego@princeton.edu>",
     source = ltn12.source.chain(source, filter),
-    server = "mail.cs.princeton.edu",
-    --server = "localhost",
-    --port = 2525
-    port = 25
+    --server = "mail.cs.princeton.edu",
+    --port = 25
+    server = "localhost",
+    port = 2525
 }
 
 print(r, e)