Hi I found an old computer Pentium 120. It was password protected but I removed that and now I can boot up and get into the cmos. I found it has Theos O/S on it but it gives an error when bootup gets going just after post. The screen is blue and states Theos portal is invalid. When I start the computer with a Winme boot disk I get to A: drive and that works ok but when I try to dos over to C: it says it's an invalid drive. I checked cmos and the drive is set up ok. I even installed another hhd that I know has info on it and when I install that one I can't go from A to C either. How can I get the computer to switch over to C:? Or..when I'm in A: and type format C: nothing happens there either. Is it possible the motherboard is no good or something has been altered on the motherboard? I just want to remove everything so I can setup a normal o/s on it and use it for older programs.