My OS unsuccessful and I determined to run A recovery mode in Acer. I choose ‘restore to factory setting’. It installs well but upon restart I obtain an error saying it didn’t install properly and that I want to restart. Upon restart I obtain a message telling I want to reset VGA drivers. Thus I have a problem with VGA driver which avoids me from seeing windows installation. I obtain a black screen. I assume I want to reset or update VGA drivers previous to I can install Vista. But how do I do this?