Digit got Avatar problem. I think admin tried some edit in his database or forum files. Or an update. All lost there avatars. I hope we all get it back soon.
Nice observation. Sigh.
It was upped to the latest 3.7.0 I think. Thats why it was down for a day. You must wait for avatars to be fixed.
Already being discussed here -> *www.thinkdigit.com/forum/showthread.php?t=85523&page=4
It will be done when it will be done.