> I have just upgraded from windows xp professional to vista ultimate.
> Install was ok but Vista does not work.
> Every time it starts, it shows me desctop and crashes with a blue screen
> givin stop error
> It says something about Video scheduler.
> Does anyone knows what it is related to?
> And what is that video scheduler and maybe I can somehow try to disable it
> in safe mode?
> Safe mode runs ok without any problem.
Sounds like you don't have Vista ready drivers for your video card.
Either that or something that was carried over from the previous
configuration of XP Pro that messed up the Vista install. I would first
go into Safe Mode with networking and see if your card has updated
drivers. If not, I would clean install Vista, which you can do by wiping
the hard drive, install Vista without imputing the Product Key and then
install it again with the product key. This will fool it into thinking
it's updating itself.