I need help. Windows XP SP2 on my computer will not start. Earlier this morning, everything was going great, then Firefox locked up while doing a Google search. Locked up tight, and I had to press and hold the power button for several seconds to shut down. Now, when I power up, everything goes well through POST until Windows tries to start up, then the screen goes black and all disk activity ceases. After waiting several minutes with nothing happening, pressing the power button for a fraction of a second shuts the computer down. I've tried booting to Last Known...
