internet explorer

OK, I have a weird problem I can't seem to find the cause for. Avatars uploaded as .gif are not displaying in IE, but fine in any other browser. The avatar itself shows fine in IE when viewed with just the link for the avatar, but not when it should be displayed in the forum. Here's my test...

Hi guys, Someone wrote me about an issue they have in Internet Explorer, which works perfectly in Firefox: Anyone heard of this? And a solution for the guy? Regards, Andre