10.7.5 on a late 2009 MacBook Pro crashes
Try the following two troubleshooting techniques:


download the latest Combo updater for your OS (note this is different than simply going to the Apple menu > Software Update) and reboot


http://support.apple.com/kb/DL1582?viewlocale=en_US&amp;locale=en_US


do a Safe Boot:


http://support.apple.com/kb/HT1455

Then report back.