Help Phone Locked After Titanium Backup Pro Restore

[latad1285]

I upgraded my Captivate to Gingerbread earlier this spring and finally got tired of all the random freezes and reboots. So, following the advice of this forum, I did a factory reset. Prior to the factory reset, I backed up everything using Titanium Backup Pro. I reset, rooted, reinstalled Titanium, then restored my backup. Titanium finished and asked me to reboot the phone. I did so and now my unlock pin does not work. I set the same PIN I was previously using when I set up the phone after the reset. I don't understand why that PIN no longer lets me unlock the phone. Can you guys help?