I have a similar issue, but not exact error message. Error occurs when on a dual screen setup using nvidia proprietary drivers.
--------------------------------------------------------- [EMAIL PROTECTED]:~$ pypanel /var/lib/python-support/python2.4/Xlib/display.py:30: DeprecationWarning: Non-ASCII character '\xf6' in file /var/lib/python-support/python2.4/Xlib/protocol/display.py on line 750, but no encoding declared; see http://www.python.org/peps/pep-0263.html for details import protocol.display Traceback (most recent call last): File "/usr/bin/pypanel", line 957, in ? PyPanel(display.Display()) File "/var/lib/python-support/python2.4/Xlib/display.py", line 80, in __init__ self.display = _BaseDisplay(display) File "/var/lib/python-support/python2.4/Xlib/display.py", line 67, in __init__ apply(protocol.display.Display.__init__, (self, ) + args, keys) File "/var/lib/python-support/python2.4/Xlib/protocol/display.py", line 123, in __init__ self.default_screen = min(self.default_screen, len(self.info.roots) - 1) File "/var/lib/python-support/python2.4/Xlib/protocol/rq.py", line 1371, in __getattr__ raise AttributeError(attr) AttributeError: roots [EMAIL PROTECTED]:~$ --------------------------------------------------------- -- System Information: Debian Release: 4.0 Architecture: i386 (k7) Shell: /bin/bash Kernel: 2.6.18-4-k7 Locale: LANG=en_US.UTF-8 Versions of packages pypanel depends on: ii libc6 2.3.6.ds1-13 GNU C Library: Shared libraries an ii libfreetype6 2.2.1-5+etch1 FreeType 2 font engine, shared lib ii libimlib2 1.3.0.0debian1-4 powerful image loading and renderi ii libx11-6 2:1.0.3-7 X Window System protocol client li ii libxext6 2:1.0.3-7 X Window System miscellaneous exte ii libxft2 2.1.8.2-8 FreeType-based font drawing librar ii python 2.4.4-2 An interactive high-level object-o ii python-xlib 0.12-5.1 Interface for Python to the X11 Pr ii zlib1g 1:1.2.3-13 compression library - runtime -- http://wiki.debian.org/AdamMiller --------------------------------------------------------- () ascii ribbon campaign - against html e-mail /\ www.asciiribbon.org - against proprietary attachments