I have read an imformative thread that is similar to my situation but slightly different. The gist of the matter is that I get to boot page and then, "hard disk failure, insert system disk" comes up. Ctrl-alt-delete just brings me back to the same spot again. If I put the Windows XP cd in the cd rom I can then boot to the desk top.
I have checked the device manager, set a number of different boot seqences[ including the slow boot way from the other thread], reformatted my hard drive, reinstalled a fresh copy of XP, and finally tried a whole different hard drive that I have in reserve.
Both hard drives get to the disk boot failure which makes me guess if it is hardware related it must be something else. The power supply is faily new but it is an off brand from Frys. I was running my g-force 6800 gt and playing Far Cry and Microsoft fs2004 perfect at high detail.
I would say the one major difference between my situation and the other computer users problem is that I absolutely cannot boot into Windows from my hard drive.