I have just pulled one of my spare working Glyph audio drives from my main ProTools HD rig to be used out on location using a Digi 002R/Mac G4 Powerbook. When trying to create a New Session, I get the error message "SESSION MUST BE ON AN AUDIO RECORD VOLUME". I double checked in the WorkSpace to make sure that the Glyph drive is designated as a record volume. Why wont this drive work using a 002R/PT 6.9.2/Mac G4/OSX 10.4.7 Powerbook, but it will work on my PTHD/PT7.2/OSX 10.4.7/G5 tower?