I wonder if you ever dusted it out. I find laptop owners to not be aware that lint and dust build up and the overheating that results kills the chips inside (not Vista.)
Bob
I have an HP Pavilion zt3000 laptop, formerly with XP SP2, and when I upgraded to Vista today, everything seemed to be working fine until...
During the process the screen automatically resized itself to the lowest resolution, then went fuzzy/snowy, kinda like when the cable is out.
I restarted in safe mode, and everything was fine. Each time I tried to restart in normal mode, fuzzy/snowy screen.
Now, it appears my laptop screen has died completely. Murdered by Vista. It is black, and even with the Fn F4 it does nothing but turn the external monitor off. The system seems to operate fine (with the usual bugs) when plugged into the external monitor, but now my laptop is of no use without its screen.
Anyone else encounter this or know of anyway to revive my screen? Thanks!

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic