Actually, Virtual PC shouldn't care whether the CPU is original or upgraded. I've used it with several upgrades from PowerLogix and GigaDesigns without problems. Good luck. -Hal On Apr 7, 2007, at 7:35 AM, Win werner wrote: > > I have a G4 - AGP Graphics - 450 MGZ 1GB SD Ram running > TIGER 10,4,9 - > > when I am trying to install the 1800 sonnet - initially it booted p > properly and ran properly - > but over time on boot up it collapses and moving the mouse causes > it to have to restart - > but runs very unstable and I had to put the original card back in > (450) to et any kind of sable running > had originall installed the firmware programs as required - > can the 1800 sonnet be tested if it has any inernl probems - I sent > an e mail to sonnet but have had no reply- anybody any suggestions > - also another problem - VIRTUAL PC needs native card - > any way around this ??? > > > > win werner