Have a user on a G4 with OS X... every time she prints a new instance of Print Monitor opens up with the document in the queue. In addition, the original monitor that was already opened loads the job and runs it through. If Print Monitor is open in the dock and something is printed, a new monitor will open every time. So there could be 5 monitors sitting in the dock, and only the original one actually flushes all jobs out of the queue. I doubt anyone's experienced this, but I thought I'd throw it out there and see if somebody could offer some input.