URGENT, Phone won't unlock

[Slevin]

I've rebooted my phone a few times, let it sit with the battery out, and nothing will work to get it to unlock. On the unlock screen, I can put in my 4 digit pin and when I hit press unlock nothing happens. This just started happening. I've been using Calkulins 6.5 ROM for quite some time. Is there any way for me to unlock this??? I can't really afford a hard reset out of nowhere. Thanks.