Just copying this from kohai's post -
chess.com International

Member Points: 4620
Guys (and ladies) can you please hard refresh your browsers, we're hoping this is fixed now. Ctrl and F5 or use the top refresh button on the browser.
Please let me know asap if you're still having problems or if its fixed for you now.
I am sorry about this :( Also, if games have timed out, let me know and i'll restore them.
When I hover over "My Move!" the game position is correct. But when I click on the link to play the game, it brings up the game with wrong positions (perhaps few moves older game).
This is happening with almost all games. Perhaps it is some "cache" related issue being used for speeding up games - the new technology recently introduced.
Skand Bhargava