Currently Being ModeratedJan 24, 2013 4:38 PM (in response to eblohm)
Try resetting the pram on the mac. You hold down Option , Command and the letters P and R all at the same time. Wait until you hear the startup chime twice then let go of those keys. It will reset the NVRAM in the mac and 8/10 times will fix that issue.
Currently Being ModeratedJan 24, 2013 7:17 PM (in response to eblohm)
Could also try resetting the smc unplug everything from the macbook except the power adaptor then on the left side of your keyboard hold SHIFT, CONTROL and OPTION. Simultaniuosly hold the power button for 4 seconds then release. If you do it right the computer should remain powered off then try starting it. If that doesn't fix it you'll have to take it in for diagnostics to see whats up with the video card. If thats the problem it shouldnt cost as much as you think. Hopefully thats all it is.