Note: I'm running Windows XP installed through Bootcamp on a Macbook Pro 13" Late 2009 model. Recently, I found out my laptop screen no longer functions when using Windows XP. It boots up normally, gets past the "welcome" screen, and then reaches my desktop. It stays fine for a few seconds, then suddenly goes black. I tried shining a flashlight to see if it was a lamp problem, but there was no "faint outline" of anything, meaning its not the lamp's problem. However, I know my laptop's still running because of the fan noise and the beeping sounds. Then, I tried plugging my laptop to my Phillips 230T 23" display, and everything worked fine. I could see my desktop, and everything normally. I also booted in Mac OSX and things worked fine too, both on the display and on the laptopscreen. No black screen there, but only while using Windows on the laptop screen itself. This means its not a video card problem either.... Any advice/help? Thanks!