I get 2 unknown devices in device manager. I just did a new install of 98 on a Presario 9642. I did the same thing with an identical system and I even used the same cd. Same printer, monitor, mouse, keyboard, NIC. The only considerable difference is that I installed while a SCSI card for my HP scanner was plugged in. I took the card out and rebooted but no change. Also got a crappy Compaq modem that I think is so stubborn that it only accepts one configuration. I took it out also with no change. I don't get these unknown devices on my other system.