Display shows only white screen after booting up

My computer froze while the screen saver was playing and I rebooted and now there is only a white screen.  The apple apears and the grey circle spins but then it freezes and the display just stays white.  I can still access all of the harddrives over my network so I am assuming it is just my video card.  Any thoughts?

I doubt it's your video card, but if you want to test that theory, try the Apple Hardware Test.
Intel-based Macs: Using Apple Hardware Test

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