I was running 1970 and just installed 3106. AutoCad was running great under 1970 and now the cursor is jerky in certain parts of the screen, and as usual SketchUp runs as poorly as it did under 1970. Two questions: Is anyone else running AutoCad and Sketchup under 3106 and how are they working and is there any way to make Sketchup work better? Secondly, how do I go about reinstalling 1970? Thanks for the help David
