> 3) The up and down arrow keys don't work.  X seems to eat them up.  Perhaps
> related to this, the documentation says that using option + arrow keys will
> simulate middle and right mouse buttons.  Doesn't work for me, though.

I had this problem with the previous version of X. You got those
key back with xmodmap. I don't remember the exact syntax for the
.xmodmaprc file but look at the man file for more informations.

				Snoopy

PS: If you don't have the man files, you can get any man files from a
X11 release. I got one from school.