Hi got bought a used MacBook Pro and I installed Windows 7 64 bit and I got a white screen crash in Windows second time the first time was more than a week ago. The desktop would turn white and than black with no audio at all only choice was to reboot. Has anyone had that problem? I had took it a while back to the Apple Store to get it checked it and they said other than minor dings everything was in working order or should I take it again to them? The crashes have only occured with Windows 7.