Xwindows defaults

[nicaugh at otago.ac.nz]

I have a problem with X-windows on a Decstation 3100 running ultrix 3.1,
X is is Xmfb initialiased using xdm, with uwm window manager.

The problem is that X applications are not reading my ~/.Xdefaults file.
The only way I can specify defaults is to use xrdb.
The ~/.Xdefaults file is read however if I setenv DISPLAY to be a
Iris 4D20 on our net, but never on the decstation. 
Can anyone please suggest a solution/where in the manual to find a solution.

Thanks in advance
Nigel
===============================================================================
Nigel Caughey                       Phone : +64-3-4799939
Animation Research Unit             Fax   : +64-3-4799915
University of Otago
Dunedin 
New Zealand                         Email : nicaugh at otago.ac.nz

Any Opinions Expressed are mine and not my employers