I have wanted to go back to 9.2.1 on one partition of my G4 but was told that my 2003 dual boot mirror door G4 will not boot in anything older than the 9.2.2 that was installed with it. xxxxxxxxxxxxxxxx Since I have only an older G4 I'm not sure but maybe someone else on the List has an answer. I use Panther on one drive and OS 9.2.1 on it's own drive. I never have any problems with it. I think you can't use X and 9 on the same drive with partitions but I may be wrong. I suppose you also can't use a SCSI drive on the dual? Jano _________________________________________________________________ Get a FREE online computer virus scan from McAfee when you click here. http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963