Can't switch window manager (crash)

[arif <arif mamdani verizon net>]

Has anyone else had this problem:
I'm running RH 7.0 with Helix-gnome on a 400mHz AMD k6, with 192 MB RAM, 
When I try to switch window managers, from Sawfish to Enlightenment, the
"wm-properties capplet" crashes, preventing me from changing window managers.  
Anyone have any idea what's causing this, and/or had this same problem?

thanks -arif