Power Macintosh G3 (Blue and White): Norton AntiVirus 5.0.3 Compatibility

I have a new Power Macintosh G3 (Blue and White) and after installing Norton AntiVirus 5.0.3, I notice there is a red "X" through the ATI Graphics Accelerator icon as the computer starts up. What is causing this?
Symantec, the publisher of Norton AntiVirus, has identified a problem with the Auto-Protect extension part of NAV 5.0.3. A suggested work around can be found in the Symantec Knowledge Base by following the URL below:

http://service1.symantec.com/SUPPORT/num.nsf/docid/1999022607305211
Published Date: Feb 20, 2012