I've just bought a Mac G4 with dual processors, running System 9. As Photoshop 5.0 opens on this system, the message "measuring memory" is presented as the plug-ins load. When this message appears, the cursor icon becomes corrupt and the program freezes. Is Version 5.0 incompatible with System 9, or with G4 dual processors? I'm prepared to upgrade my Photoshop, but I'd like to know first if the new system is the cause of the 5.0 problems. BTW...I have 100 megs of RAM alotted to Photoshop, so memory per se shouldn't be the source of the trouble. It may also be pertinent that this problem occurs only about half the time.