I brought an A600, and it had a hard drive with OS 3.x installed, obviously because someone took it out of an A1200.. anyway, when I play games, the floppy drive reads disks just fine. When I load XCopyPro and use "Format" or "Verify", again, there are no errors. However, if I try to format or read a disk in Workbench, I get checksum errors. I suspect that because the wrong WB is installed, thats why there are errors. Does that sound right? We cleaned the heads on the drive so its not that..