I have a Toshiba Satellite L305D laptop. It runs an AMD Turion X2 64 2ghz processor. (64bit supported). I tried loading W7 64bit (Build 7000) yesterday, and it started up fine the first time. I installed the updates, and it bluescreened on the second startup. I rebooted and let it go through its "Boot repair". It started on the third reboot just fine. I tried installing the updates again, and it bluescreened on me yet again, but the boot repair couldn't fix it the second time. I installed 32bit after that. Even after all of the updates it works fine. My question is what would cause this? I am assuming it was one of the updates, but without about 4 days worth of free time, I can't go through them individually and see which one is causing the error, so I am hoping maybe someone here has experienced a similar problem. The install CD is good. I have used it to install W7 on 4 other computers in my house. Edit: Nevermind... problem found. It is the driver for the ati radeon 3100 graphics card. it installs and configures fine, but upon reboot I get bluescreened. I cannot seem to find a workaround for this. I am going to try to install the vista 64bit driver. Hopefully it will work.