My wife's G4 iMac is getting a bit cramped since I set up my own account on this machine. I wanted to save some space on the HD by deleting System 9, something she once needed but doesn't anymore. I tried to move the system folder to the trash and got the error message "this operation can't be completed because item "system folder" is required by the system." Is there anyway to get rid of System 9 on this machine?