Have a DJ500 plotter with HPGL2 card that has been working fine for the past 12 months. Now prints from the server (win2K) without a problem but from workstations the job goes to the queue and then errors out. Tried from 3 different workstations with the same results from all. Can ping the IP address of the plotter no problem from anywhere. Have switched patch cables, ports on the switch. Networking side seems good. Anyone had this before?