key2 sent me his wallet details and I was able to login successfully and couldn't see any particular problems. Perhaps it is a caching issue.
Yes, and thank you so much for your help, and sorry for all the confusion. Very strange. Though I'm still being asked for a private key which never happened before (I PMed you again).
Thanks for all your help, anyone who responded here, I really appreciate it.
edit for anyone that might still read: everything is officially back to normal. Thanks a lot to piuk and the rest of people helping out.