IDSvia64.sys causing BSOD

Periodically I'm getting a BSOD in Windows 7 on my Dell Inspiron. I uploaded 2 DMPs to Microsoft support. Their report:

*** WARNING: Unable to verify timestamp for IDSvia64.sys<== Norton
*** ERROR: Module load completed but symbols could not be loaded for IDSvia64.sys
Probably caused by : IDSvia64.sys

https://www.dropbox.com/s/lsl3pgzzz3t69tw/071216-59982-01.dmp?dl=0

How do I fix this?

Carolyn