6700- White blank screen, otherwise works fine??

[ianwvu]

Hey, I need a little help.

I was using my 6700 yesterday, and following a text message I put my hand/phone down at the side, then a few seconds later looked at the screen for a reply, and the whole screen was bright white. The phone works fine, I can make/receive calls, I hear the text ding, my alarms still go off, but the screen still stays white and I can't see jack. Any clues to what I can do to fix this?