I just swapped some new RAM into a machine (following a power surge that seems to have killed the old RAM). For the most part, everything seems to be working fine. Except if I boot the machine with a ...

The 620 does not have any PS/2 ports. This system is running XP SP2. I have reset the BIOS to defaults, and ensured that the USB settings are correct. I've tried all the ports, and the USB mouse works ...