dumb error registering for wiki

["Stephen O' Sullivan" <shpic@unforgettable.com>]

Hi, 
This is a bit dumb but when registering for the wiki I typed my email with a " instead of an @ (didn't realise I was using a US keyb setup). I can login, and tried changing my email in user prefs but it won't save the changes.
Anyone know how I can set a valid email.

Thanks,
Stephen.