Hi. I'm running Win XP and Pingplotter v2.30.1. When I start PP I get five or six 'Access violation at address 0012FA87, Write of address 77D477FC' messages. Pingplotter v1.10 works fine. The access violation message continues to show up after you click OK though PP functions normally. Sometimes, if I don't click on anything in PP, the access violation message will not reoccur. I am running an Asus K7V mb with 1gb ram, a 3C990 NIC, Netware client (bound to IPX/SPX only), and a Matrox g400 dual output video card. I had Norton AV CE 7.5 installed but uninstalled it in case it was related. <br><br>