Norton Antivirus 2009 conflicting with my video card drivers

I recently installed NAV2009 on my Vista gaming computer.  Yesterday I began to play CounterStrike:Source and started to get blue screens saying: "Attempt to reset the display driver and recover from timeout faileD".  I called up dell tech support and in the physical memory dumps it was noticed that Symnatec was involved in some of the crashes.  I tried to update my video driver to a non-dell one and rather one directly from the nVidia website.  That did not work so I did a system restore to get to the previous driver.  Once I did the system restore Norton was not acting right.  It told me that I had disabled it and that my definitions were not up to date.  I then recieved a blue screen upon attempting to restart my computer: "A device driver attempting to corrupt the system has been caught."  I called Dell again and they reccomended a NAV uninstall in safemode and reinstall which I did.  As soon as I restarted from the reinstall I got the same blue screen message.  I restarted and now Norton no longer boots.  I called Dell again and they had me play CS:S for a bit to see if it crashed without NAV running.  I played about 10 minutes and had no problems(I usually crashed within 5).  They then referred me to call Symnatec which I did. 

 

Well, 1 hour 20 minutes later, I'm still listening to elevator music.  I figured maybe someone here had an idea of what to do.  If I cannot resolve the issue I guess I will need to remove Norton completely.

 

Any ideas?

edit: Forgot to mention relevant(probably) system specs:
3.16 ghz core 2 duo
nVidia 9800GT
4GB RAM
Vista (32-bit)
Message Edited by VanishingLight on 12-29-2008 08:15 PM