So far two people have experienced this - but in both cases the pictures in question are viewable by others. I'm doing some digging but so far have not been able to replicate the problem. If anyone else experiences this - or is unable to see xXGregXx's gallery pics please let me know as it might help me narrow it down. So far as I can tell there is nothing server-side causing this or others would see it as well.

Did clearing your cache and deleting cookies not help at all? Are you running any 3rd party firewall or security software? BlackIce Defender?