We use a Star TSP800II network printer for our prescriptions. The driver for the printer is on a pc running Windows XP 32 bit. Our various pc connect to the printer via ethernet. All pcs running Windows XP can print to the STar TSP800II without any problems. However, one new Dell desktop with Windows 7 (64 bit) can only print ONE prescription at a time. If I try to print more than one Rx at a time nothing happens. It does not make any difference if I set the TSP800II as the default printer. I would appreciate any help with this problem.