RH6 does not recognize the key for "<>|", which is on the lower left corner right of the shift key on a german SUN type 5 keyboard.
what is the contents of your /etc/sysconfig/keyboard file?
additionally, what are the relevant Xkb lines from your /etc/X11/XF86Config file?
bug closed due to lack of additional feedback. Please reopen if you have more information as requested.