Thanks for the tips, Soquili... but that still doesn't compensate for what is, for me, a real problem with X. Why does pressing the mouse wheel button open a new drawing? Who uses that? Why can't I set the Forward/Back buttons to do something useful, like switch back and forth between previous tools? I've got a wonderful mouse interface that is going to waste for no good reason here. I shouldn't have to press keys and go to extra steps when the mouse buttons are just sitting there doing nothing. Five years ago this was an understandable omission, now it just seems sad. C'mon, guys.