Yep, I had the same problem installing the latest Microtech USB CameraMate drivers on my wife's G4 Sawtooth with 10.2.4 -- figured it was a problem unique to this vendor's PKG. I gave up, shut down the machine and went to sleep, then the next morning booted and re-downloaded the driver PKG and it installed OK. Strange...no identifiable pattern or fix. Regards, Jim