Description of problem:
system-config-display crashs on startup with following output:

Traceback (most recent call last):
  File "/usr/share/system-config-display/xconf.py", line 294, in <module>
    vc = rhpxl.videocard.VideoCardInfo()
  File "/usr/lib/python2.5/site-packages/rhpxl/videocard.py", line 149, in 
__init__
    elif rhpl.arch.getCanonArch() == "ppc64pseries":
AttributeError: 'module' object has no attribute 'arch



Version-Release number of selected component (if applicable):
system-config-display-1.0.51-4.fc8

How reproducible:
ever

Steps to Reproduce:
1. start system-config-display from a terminal
2. watch output
  
Actual results:
app is crashing

Expected results:
app is working

Additional info:
I've set priority to "high" because this is one of my (personal) blockers for 
releasing the fedora kde4 livecd.