Odd Avatar Problem

[Dead End Society]

I posted this on vB.com but it's not getting any attention, so I'm trying my luck here.

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This is an odd problem I am having, but I can't see my avatar, nor those of 2 others. I am the only person that can't see them. Even in my admincp it shows us as not having any avatar....but again, only to me.

All 3 are jpeg's
All 3 are different usergroups
2 of the 3 are old ones, not new
Same issue in both IE and Firefox

I also have 2 computers here in this room hooked to a hub, sharing the same connection, and on the other pc, I can see it, but on mine I can't.

Sorry if this is the wrong place to ask this, but I got to start somewhere, any idea what it up? This is really annoying me.