One-Button iMac mouse

[Jon Linnell <kobakira@gmail.com>]

I just configured xWindows on my iMac (Debian PPC 3.1Sarge), but I  
can't get to the contextual menus! On mac, to do this you'd normally  
press CTRL before clicking to get the contextual menu up.
But that doesn't work on Debian. I want to know if there's some way  
of changing the controls so that when you have a button down (CTRL,  
ALT etc.) and click the mouse you get the contextual menu up.

Cheers,
Kobakira <kobakira@gmail.com>