Additional drivers in System Settings crashes on launch

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http://askubuntu.com – I have Ubuntu 12.04 installed on a Powermac G5. When I try to launch Additional Drivers to install the driver for ATI Radeon 9600, it crashes. I found the following traceback on terminal when I ran jockey-text. Can anyone help me in debugging this issue ? Additional Drivers Searching for available drivers... Exception in thread thread_call_progress_dialog: Traceback (most recent call last): File "/usr/lib/python2.7/threading.py", line 551, in bootstrap_inner self.run() File "/usr/lib/python2.7/threading.py", line 504, in run self.__target(*self.__args, **self.__kwargs) File "/us (HowTos)