issues with cache

[jahshaka]

hi,

i am having major issues with cache on ie7 and was wondering if anyone else understands whats going on here.

basically images that are in my domain dont cache, but images that arent in my domain but are on the same server cache properly.

this only happens when opening a new browser, after which everything caches ok, but every morning when i open abrowser to visit my site i have to wait for all the images to cache every time and my users have noticed this!

ie:

http://www.vfxtalk.com

all the images in the header have to recache every time you open a new browser. but the thumbnails in the articles below, which are all located on http://www.cgnews.com load up immediatly from the cache.

anyone have any ideas?

thanks
jah