Good, we will go from there. Can you go to c:\qoobox and open combofix.txt and copy the log and paste it up (if it will not paste up, zip it and attach it as before). Then go to the control panel, then to the system control panel, then to the hardware tab, then click the device manager button and see if there are any devices with a yellow exclamation mark or a red x next to them. If there are, let me know which.
I need you to go to the administration tools in XP. They are in the Control Panel. Open the Admin tools, then open the event viewer. Over on the left hand side and click on System. Then up at the top click on Action and then click on Save Events As, type in system as the file name, make sure file type EVT is selected, and then navigate so it will save the file to your desktop, then click save. Over on the left hand side and click on Application. Then up at the top click on Action and then click on Save Events As, type in application as the file name, make sure file type EVT is selected, and then navigate so it will save the file to your desktop, then click save. Zip them both up into a single zip file, post them back here in your next reply as attachments. If they are two big to attach, let me know and I will tell you what to do with them.