Problem running some apps under user

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I am having problems running gvim and xmms as a user on Xserver.  Both
applications run fine when I am root.  Both applications crash if I run
them from a user account.  I am sure this is a stupid problem, but I
haven't been able to figure it out yet.  Gvim doesn't spit out any
useful information really,  the window just opens and it stalls.  Xmms
doesn't even open a window an puts out the following error message:

Gdk-ERROR **: BadMatch (invalid parameter attributes)
~  serial 219 error_code 8 request_code 2 minor_code 0
Gdk-ERROR **: BadFont (invalid Font parameter)
~  serial 224 error_code 7 request_code 47 minor_code 0

Any ideas?

I do run Xvesa suid root if that matters.

John
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