My best guess is that it has something to do with your browser. I think chess.com is still functioning aptly. You might try to download firefox (which is a better browser than Internet Explorer anyway), or reinstall internet explorer.
If you want to be sure that it is a browser related issue, you can try logging in on a different computer. There is virtually no chance that your problems remain.
Good luck!
Hi...I have contacted the support team...but posting here too....
I have to make a move on one of my games and after loading the board, i can't see a single piece on the board....has this happened to you? I tried everything from reloading, relogin, restarting my system...but of no help.