Same problem here. Cannot add FIFA 11 to I own or any other list.

Tried on IE7(XPSP3), Safari (Macos) and Chrome (MAcos)

The same problem for me. Cannot delete game from the "I own" list. After I choose "delete" and then "save" the page tures blank with message "Cannot display this page". Address is http://www.gamespot.com/pages/profile/edit_collection.php

Tried Safari (MacOSX), Chrome (MACOSX) and IE7(WinXP)