imagecreatefromgif fails for a valid image

I get a failure in creating a gif. php error log shows this: Sep 24 00:25:47 thushw-laptop apache2: PHP Warning: imagecreatefromgif() [ function.imagecreatefromgif function.imagecreatefromgif ]: '/home/thushw/mocha_src/LiveMocha/trunk/src/wwwroot/app/webroot/img/new/button-middle.gif' is not a valid GIF file in /home/thushw/mocha_src/LiveMocha/trunk/src/wwwroot/app/webroot/button.php on line 30 the gif can be viewed by gthumb. it seems ok. the problem is only for some gifs. Most gifs, all pngs, jpegs that i've tested so far work. i'm running php5 on ubuntu (uname -a : Linux thushw-laptop 2.6.20.3-ubuntu1 #2 SMP Sun Apr 15 11:26:58 PDT 2007 i686 GNU/Linux) phpinfo shows: gd GD Support enabled GD Version 2.0 or higher FreeType Support enabled FreeType Linkage with freetype FreeType Version 2.2.1 T1Lib Support enabled GIF Read Support enabled GIF Create Support enabled JPG Support enabled PNG Support enabled WBMP Support enabled from what i've read so far, seems like i need gd lib >=2.0.28. from phpinfo output it is not clear if i have the right version. i use: apt-get install php5-gd to install gd these are the files i think are of importance: /usr/lib/libgd.so.2.0.34 /usr/lib/libgd.so.2 [the second is a symlink to the first] >> ls -l /usr/lib/libgd.so.2 lrwxrwxrwx 1 root root 15 2007-09-24 00:25 /usr/lib/libgd.so.2 -> libgd.so.2.0.34 how do i debug this further? any help greatly appreciated. this problem doesn't appear with the gd we have installed on our centos servers. seems to happen only on my ubuntu install. thushara -- View this message in context: http://www.nabble.com/imagecreatefromgif-fails-for-a-valid-image-tf4507593.html#a12855355 Sent from the PHP - General mailing list archive at Nabble.com.