Well I originally wrote a long reply stating that I also had this problem and outlining what I know, basically all I knew was that it was related to the updating of Norton Redirector. Just before I hit submit, I decided to do some research and bam I found exactly what I/we are after:
This error is caused by a conflict between the Symantec Redirector program update and a prereleased or beta version of NAV. Prerelease or beta versions of any Symantec software are not supported by Symantec. Contact the vendor that you purchased the software from to request a released copy of NAV.
To determine whether you have a prerelease or beta version of NAV, examine the version of Navapw32.exe . If the version of Navapw32.exe is less than 8.0.0.58, then you have a prerelease or beta version of the software. (For example, if you have version 8.0.0.41, then you have a prerelease or beta version of NAV.)
Search for the file and then go to right click>properties>version to see what version you have.
I've read that this problem probably only affects copies which have "fallen off the back of a truck", as the final product is supposed to have the .58 version. So if it came pre-installed on your comp from a shop you can pretty much go and blast them for giving you an old copy (I'll be doing some blasting soon).
Hope this helps,
Patrick
