NIS 2010.1 Patch Blue Screen issue correction conditions

In the announcement post for the Norton Internet Security 2010.1 Patch by Tim, FAQ #4 identifying changes in this release listed "Corrected an issue that could produce a Blue Screen under certain conditions".  I wondered if I could find out any additional information about the "certain conditions" that could produce a Blue Screen.

 

I upgraded my daughter's laptop several days ago to NIS 2010.  The next day she received a blue screen during windows shutdown.  We wanted to figure out if it may be related to the NIS 2010 upgrade.  She is running Windows Vista Home Premium.  Thanks!