gmc doesn't run under XFree 4.0

[Tom Main <tom main boeing com>]

Hello all,

I just installed installed XFree 4.0 from rpms on
http://people.redhat.com/bero
everything works (pretty much) but gmc won't run.
I get the following errors:
Gdk-WARNING **: locale not supported by Xlib, locale set to C

Gdk-WARNING **: can not set locale modifiers

Is my X locale set wrong (should be us english)?
How do I change it?

Thanks in advance.