I have a Acer Desktop, it had Windows Vista Home premium, my problem is when I start it up, the screen gets all messed up and has green and white lines going diagonally across the screen, and if it does start up it freezes and does not unfreeze again. COuld any one help with this problem. I took it to staples and the staples guys said it was a problem with the battery, so tehy changed it becuase it said it could not remember crucial settings. So they replaced that under warranty. And what do you know, its still not fixed. SOmetimes I think the service people I meat and just idiots.