This is really strange. My HTPC used to be bomb proof. Never had a problem and never even crashed. Now it seems to have gone belly up for no apparent reason. This started about a month ago but I thought I'd solved the problem. Now it's happened again. On booting WinXP Pro I get the message "Windows could not start becuase the following file is missing or corrupt: System32\Drivers\Ntfs.sys" Now, after I spent ages last time trying to re-format and all sorts. In the end I started looking at the hardware so I removed one stick of 256Mb DDR ram. This seemed to solve the problem. This time I'm getting exactly the same error but as I'm only left with the one other stick of DDR ram I can't tell if this is causing the problem or not. Now, I'm no computer muppet but am I just unlucky that 2 sticks of DDR would die on me? Or is there a more serious problem going on?