Droid 2 slide won't unlock, but sound will turn off/on


I have a Droid 2 that won't unlock, but sound can be turned on/off. Can't answer phone when it rings (touch screen doesn't slide to right). Have tried removing battery, pulled all cards, tried safe mode and hard reboot.  As last resort took phone apart (couldn't get touch screen off--no T2 driver), but checked that all cables (3 to main board, antenna and 1 for mic/speaker) were all well seated. It is back together and still works the same.  I am wondering if something has been knocked loose or what might be broken.  Any ideas are greatly appreciated.

Thanks for the help.