1) At non-square aspect ratio particles move oddly:
	change psys to handle non square better

2) reConsider a non FP psys ?

3) allow proper -geometry option

4) Fit into xscreensaver (perhaps need to use vroot.h)

5) -r should fit a better size/place by default.

6) -r should still be able to obtain keystrokes ?!

7) render routine in vgl appears to leave some crud at bottom left
