I can't get the keyboard equivalents for the mouse buttons to work. X
without buttons 2 and 3 is pretty painful... I'm using NetBSD 1.5, and
I've tried <OPTION>+<left arrow>, <OPTION>+<right arrow>, as well as
<OPTION>+1, <OPTION>+2, <OPTION>+3, as instructed in the Xsetup HOWTO.
None of these seem to do anything at all. I can't find anything about
this in the FAQ.

I must be missing something. Any suggestions?

Ian