I am getting this message when previewing and plotting a drawing: The message occurs twice and than it will preview or plot. AutoCAD Severe Error: Internal: invalid input data for Decode Data expand failed Our Plotters & Printers are through a server and my Autocad is 2004 loaded locally. I am the only one in the office using 2004 everyone else is on 2002 and have no problems. It just started the other day. Any ideas ? We have HP 1050c plotter but it doesn't matter what I plot to even our printers