On Tuesday, December 3, 2002, at 05:38 PM, James Knight wrote: > .... there are no pageouts happening. > .... All I know is that the problem starts when I'm ripping > a CD and then try to use the internal HD eg when launching an app or > when > Entourage tries to display an email. There might be another thing going on here. The (e)IDE bus doesn't behave well when multiple devices are doing I/O. That's one of the big advantages of SCSI. If I'm using iTunes to import a CD (Tchaikovsky) it takes 11 bounces of the Dock to load MS-Word. If I do it without iTunes it takes 4. Launching F1 Championship demo from a FireWire drive during an iTunes import only takes 4 bounces. So, if you move some of that I/O activity off the internal eIDE then you shouldn't see that beachball so much.