I have my macbook pro(in sig) bootcamp into Windows 7(64) to play games. I have it plugged into an external display through Mini Display-> DVI and I use the MBPs own screen as a secondary screen. Works fine is OS X and worked fine in Win7 until today. I boot into windows and there's an update. After the update finishes the MBP screen is black. The external display is fine, shows everything but the MBP screen is pitch black. I tried re-detecting displays to no avail. Windows 7 is recognizing that there is dual screens when I go into display settings. I tried making the MBP the primary display to see if that would change anything, but even as the primary is stayed black. Is there a new video card update that I require or something? Has anyone run into this issue? Thanks.