Here's a REALLY neat program that all educators teaching in WIndows should
check out: WinPointer from PC Magazine. This thing allows you to sketch right
on the Windows screen in any program by simply hitting a hot-key and drawing
with the mouse. It works just like the thing that the football commentators use
on TV (can't remember what they call it). When you're done, hit ESC and the
screen cleans off with a redraw.
This program is GREAT for emphasizing a point while teaching, especially in
AutoCAD. Best of all, it's free. Go to the Utilities section in PCMAG and
search for it, and look for a file called WPNTR.ZIP.
Good luck!
-KLF