I have a GRX-400 at the high school and some students broke it. The physical damage was repaired and the plotter loads properly by itself but now there is an AutoCAD error that I can not work through. Here is a history dump. (its short). clues to problem solving this would be appreciated Opening an AutoCAD LT 2000/AutoCAD 2000 format file. Regenerating model. Command: *Cancel* Command: *Cancel* Command: <Switching to: D-size Layout> Regenerating layout. Regenerating model. Command: z ZOOM Specify corner of window, enter a scale factor (nX or nXP), or [All/Center/Dynamic/Extents/Previous/Scale/Window] <real time>: Specify opposite corner: Command: plot Press ESC or ENTER to exit, or right-click to display shortcut menu. Effective plotting area: 20.68 wide by 31.73 high Effective plotting area: 20.50 wide by 31.58 high Plotting viewport 2. Plotting viewport 1. Warning - Invalid hard clip limits returned from plotter. Using computed clip limits. Is the HPGL plotter plugged into the configured port? Are the serial port and plotter settings matched? Command: Automatic save to C:\DOCUME~1\STUDEN~1.DCG\LOCALS~1\Temp\Building Section and Details_1_1_4579.sv$ ...