As promised, the info on my hardware:pci: video: Stealth64 Graphics2000 Series (2M DRAM) ether: AT-2450BT Series PCI scsi: AHA-2940motherboard: "mdb-pc5mb", AMI BIOScpu: p166I only occasionally use the ISA floppy drive, so I doubt that that'sthe problem, I still get lots of "bus master arbitration failure" messages...