ok, I am using a Toshiba Satellite 5205-S705. When I turn it on, it shows the Toshiba logo, then goes to a screen saying that windows did not shut down properly and asks if I want to start as normal, safe mode..ect..ect I have tried all the choices, and if I choose to run normally, it freezes on that screen. If I choose from the other choices, it will either go to a black screen, or go through like, a driver check and stop when it gets to "atisgkaf.sys" and will not go any farther. I have tried booting with Disc, resetting the ram, and other simple things like that. And also, when I go into BIOS, the only options in that, is to set the time, and and set a password. Does anyone have any idea what the problem is?