After upgrade 6.1 -> 6.1.92 kdm ceased to load user's and system
Xmodmap file. The problem is related to fact that Xsesion file attempts
to set xkb map first and incorrectly sets flag that xkb is in use.
This happens because sysxkbmap (if I remember correctly) shell variable is
unassigned and is not quoted in if statements. For some reason bash
treats "[ -f $sysxkbmap ]" as true under this circumstances.
The problem probably also exists in xinitrc.
The simplest solution - quote all variables in scripts.
fixed in XFree86-3.3.6-14 and later.