Description of problem:
sh: xwininfo: command not found
Traceback (most recent call last):
  File "/usr/bin/wallpapoz", line 1238, in <module>
    wallpapozgui = Wallpapoz()
  File "/usr/bin/wallpapoz", line 76, in __init__
    self.wallpapozxml = XMLProcessing()
  File "/usr/share/wallpapoz/lib/xml_processing.py", line 49, in __init__
    wallpapoz_system = WallpapozSystem()
  File "/usr/share/wallpapoz/lib/wallpapoz_system.py", line 34, in __init__
    self.finding_screen_resolution()
  File "/usr/share/wallpapoz/lib/wallpapoz_system.py", line 50, in
finding_screen_resolution
    self.screen_width = int(raw_resolution[start_width+7:end_width])
ValueError: invalid literal for int() with base 10: ''


Version-Release number of selected component (if applicable):
Name        : wallpapoz                    Relocations: (not relocatable)
Version     : 0.4                               Vendor: Fedora Project
Release     : 0.2.svn50.fc7                 Build Date: Thu 05 Apr 2007 09:31:18
PM EES

How reproducible:
always