No video output until restart

MANOFKRYPTONAK

Distinguished
Feb 1, 2012
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I have a computer thats roughly 1.5 years old, worked great. But now when I turn it on I get no video output until I reset it. Any Ideas? Just recently got a new vizio 50" to go with it...

i7-2600
680 2gb
ASUS p8p67 deluxe
16gb ram
antec-1000W PSU- fairly new 3 months old

Thanks in advance