I've rescued an old Summagraphics mm1812 digitizer tablet from going to the landfill. The previous own tells me it works but I am having trouble setting it up. Following are the specifications. Dell XPS R450 running Win2000 SP2 HID compliant (USB) mouse Acad Map 2000i Driver: GTCO CalComp TabletWorks V 10.03 Build 4 Tablet: Summagraphics mm1812 w/ 4btn pointer. TabletWorks Configuration sees and correctly identifies the tablet but the tablet will not take over the pointer. Acad says the current pinter cannot be used as a tablet. Any ideas? Chuck