xkb error message

[Stephen Fisher <slfshare earthlink net>]

When I start gnome 2.6 under x11 on Powerbook G4, I keep getting 
following error message:
Error activating XKB config
Probably internal x server problem
X Server version
40300000
Xfree 4.3.0

If I just hit close everything seems to work o.k. Message suggests if I 
report to run following commands:

xprop -root |grep xkb

It returns nothing

gconftool-2 -R/desktop/gnome/peripherals/keyboard/xkb

which returns: Error on option 
-R/desktop/gnome/peripherals/keyboard/xkb: unknown option.

Suggestions?

Stephen