I am using windows firewall behind an NAT enabled router.

I had same problem can Admin remove all images of mine that are black? I would do this if I knew how.

merged: 06-01-2008 ~ 11:14pm
As per Maplerose's suggestion I tried imageshack and found my image also corrupted.
I tried uploading several files all had the same problem.
I turned off the firewall and then it worked, also was able to upload here.
I am running Vista ultimate (no service packs) Firefox 2.0.0.14 and using windows firewall.
Maybe this will help some others out.