I have some suggestions for ZoomIT....

Question

a) Could Zoom it draw arrows from tail to head? It would give a sense of direction when explaining things. It'll be great to have it configured on the menu so user can choose head/tail and viceversa.
b) Support for international character set... no way to write accented chars.
c) Accept use of touch screen.
d) Toggle an option for prompting user before erasing what has be drawn. Too many times I have accidentally erase screen.
e) Check, because sometimes it hides WIndows cursor... the only solution is to unload and reload.