Everytime im in a command (for example "line" or "spline") and darw my lines, i can only move the drawing one time (with the middle mouse button), after that the "normal square-cursor" is now a "hand" even if i let go of the middleclick. Now im unable to move the drawing (with middle mousebutton) as long as im still in the "line- or spline-command". When i complete the command the programm stutters for round about 2-3 sec, then everyting is okay again. Sorry for my bad english. I hope you understand everything. How can i fix this problem?