Can't unlock phone using (un)lock screen

[treeboy]

Wife's phone, stock USCC ROM 6.5 same as in the sig. She set a password (4 digits) has worked for months. I touch the phone and it won't accept the password. Got an "Incorrect Password" error a couple of times and an enter the a1b2c3 screen which I did and now the unlock button doesn't seem to respond at all other than to turn white/gray when touched. Figure on hard reset but thought I'd throw it out there if anyone has any ideas. Maybe this should be in the Windows Mobile Software section. not sure how to do that without double posting.