Wordpress JPG upload not visible publicly via IE, but ok in Safari and Firefox about timthumb HOT 8 CLOSED

Could be a MIME type thing.  I'm having the same issue.  Seems to work fine in
Firefox and safari, then i get a broken image in IE.  Same thing happens when I 
type
the direct file path in the browser. 

Same here, but how to fix it?

Yeah, I'm getting the same issue with WordPress. My static test (no WP). Works 
just
fine. No clue what the issue could be...

UPDATE: I've realized the reason my local install of WP using TimThumb wasn't 
working was because I was 
debugging on IE using Parallels. My WP install had "localhost" in the domain in 
"Settings > General" where the 
location of WP is set. Once I set it to the machine's IP address, all went back 
to normal. Stupid mistake :(

Only works on IE when I clean cache witch CTRL+F5, why? In FF works ok. What 
can I do
about this error.

by the way, I am using JPG.

I believe the problem is in function show_cache_file, inside the IF "if
(isset($_SERVER["HTTP_IF_MODIFIED_SINCE"]))". 

this seems to be working and is a wordpress issue rather than a timthumb one so 
I
will close this now