Although this is really a Norton Antivirus issue, this problem was affecting enough people that I did some work to work around the issue for now. If you're seeing this problem, visit <A HREF="http://www.pingplotter.com/beta" target="_new">http://www.pingplotter.com/beta</A> and download the beta posted there. I've tested it on a pile of machines and configurations here, so hopefully it will pass muster, but there is some chance you might run into something - please post any issues you find!<br><br>