Usually, I can find myself the solution to my problems, but I have no idea what to do for this one. I just upgraded backtrack from rc1, following the guide, and all went well. I can boot fine, I get the login prompt, then after that when I type startx to get the GUI, the screen just flash 1-2 times and then stay black. The only thing I can do is shutdown the computer and restart it. What could be the problem? Maybe it's not recognizing my screen resolution? Or maybe it's forcing a higher resolution than the screen supports?