I have a serial mouse and I want to use my new intellimouse ps/2, but when I reboot with the ps/2 windows doesn't detect it. I made sure that the ps/2 is the only mouse installed, and I know it works because I bummed it from another pc. Is there something in the bios that I'm not doing right. I know the drivers are good, I got them from Microsoft. I doesn't make sense. It won't reconize it's there. Help Please.