iPod Touch 2G white screen (Restore didn't fix)

[core2kid]

I had a water damaged iPod touch that I fixed up. I replaced the battery, digitizer and volume lock button flex cable. It worked fine. Suddenly yesterday I started getting the white screen of death. I can hear the iPod click to unlock, the computer recognizes it fine. Is this a motherboard problem, software problem or will a new LCD fix it?