With my windows XP, during boot processing, the video signal has two high for
my LCD monitor, and it's disynchronized. I have two computer using Geforce
6600gt, and lcd monitor, with same problem. only when logon screen appear,
this situation return to normal. I suspect some probleme with nVidia device
drivers.

With vista (RC1), this same problems appear... but i never see the logo
screen : the screen remain out of screen. Is not possible to terminate
installation in this condition...

Have out some ideas for solve this problem ?