I have a Windows XP Home that I am trying to upgrade to Xp Pro. I started the upgrade process while booted up to XP Home. The process started, the computer rebooted and went through the "preparing installation". The computer rebooted again, and "Installing Windows" continued. The mouse and kb both worked at this point. A few minutes in to the installtion, "Installing Devices" started, and then the mouse and kb stopped working. Then a "Hardware Installation" dialog box came up for "Intel G33/G31 Express Chipset Family" since it had not passed Windows Logo testing. However, I cannot click "Yes" to continue because my mouse is not working. Obviously, the chipset (which has my usb) wants to install, but the XP setup has disabled the usb until I click "Yes", which I cannot do. I do not have ps2 ports, only usb. Any ideas?