Contact trouble

[iviyth0s]

So recently I have been unable to add or even edit any of my contacts... (seem to have lost the ability when I jumped from fresh 2.0b to 2.0d). When I go to save the changes (of an edit), this screen pops up:

And when I go to add a new contact it goes through fine, but when I go and check the contact list they aren't there.

Any help you guys can offer would be a breathe of fresh air!!

Thanks!