Hello folks - this machine seems to be spyware/virus clean. XP Pro with SP1 installed. Very few processes running at startup. It will not install SP2 or SP3. After a while (most of the installation seems to go fine), It gives a small window saying that the installation was cancelled. I have tried:

Installing both in safe mode.
Repair install of XP Pro.

Neither of these has helped.

Any suggestions? I can provide more info if needed.