Description of problem:     
system-config-printer hangs when clicking on 'New' to add a new printer. 
     
Version-Release number of selected component (if applicable):     
system-config-printer-0.6.116.1.4-1     
     
How reproducible: Always     
     
     
Steps to Reproduce:     
1. launch system-config-printer     
2. click on 'New'     
       
Actual results:     
$ system-config-printer     
*** glibc detected *** malloc(): memory corruption: 0x09aece50 ***     
sh: line 1:  9151 Abandon                 perl -e 'ioctl(STDIN,0x84005001,    
$result);print $result' 2>/dev/null </dev/usb/lp0     
Traceback (most recent call last):     
  File "/usr/share/printconf/util/queueTree.py", line 580, in     
new_button_clicked     
    self.addQueue.addQueueDruid ()     
  File "/usr/share/printconf/util/addQueue.py", line 248, in addQueueDruid     
    self.populate_device_view ()     
  File "/usr/share/printconf/util/addQueue.py", line 468, in     
populate_device_view     
    self.local_devs = self.parent.conf.scan_local_printer_devices (force)     
  File "/usr/share/printconf/util/printconf_conf.py", line 1288, in     
scan_local_printer_devices     
    local_printer_devices.device_dict[dev].update(autodetect_usb_printer(dev,     
i))     
  File "/usr/share/printconf/util/printconf_conf.py", line 1415, in     
autodetect_usb_printer     
    return { "auto" : auto }     
UnboundLocalError: local variable 'auto' referenced before assignment     
     
     
Expected results:     
Proceeds to enter a new printer     
     
Additional info:     
Dell Inspiron 5160     
kernel-2.6.10-1.770_FC3smp     
  
Output from  /proc/bus/usb/devices attached