Roy,
Do you visit any other forums ? Also do you know if when you are unable to view an image - can you view it by looking at the properties, and viewing it directly ?
The reason I ask is that if you visit, say microsoft, all the images you see on the page are stored on the microsoft server, but on this (and most other) boards, only the link to the original site is stored, and the picture is retrieved every time it is needed by a client.
Cheers
Dan