IE9 Crashes at Start Due to Norton Vulnerability Protection Add-on

My NIS 2012 engine is 19.9.0.9.  My PC is a Vista Home Premium Edition (x32) with IE9.   This problem began on 10/31/12. 

 

When the Norton Vulnerability Protection add-on is disabled, everything runs fine.

 

When the Norton Vulnerability Protection add-on is enabled and I try to open IE9, I get a white screen and then a message saying, “Internet Explorer has stopped working.  A problem caused the program to stop working correctly.  Windows will close program and notify you if a solution is found”.  When I click Close Program, a new message opens near the bottom of the screen:  “Internet Explorer was closed.  To protect your computer, Data Execution Prevention has closed Internet Explorer.”

 

Although I don’t remember all the details, I had a similar problem around 3/1/11.  That one was caused by a bad NIS update and subsequently fixed with a corrective NIS update. http://community.norton.com/t5/Norton-Internet-Security-Norton/NIS-Intrusion-Protection-crashing-IE8/td-p/406950/page/8

 

Could this be happening again, or is something else going on here?