I have three computers (one XP Pro, and two Win & Pro) that were working on a home network until I installed NIS 2011 on all (I have a threePC license). Now the two WIN 7 machines cannot see each other and the XP cannot see either; however, the WIN 7's can see the XP - this applies to shared files and pings. I have CISCO NetMagic and it now shows that I do not have an antivirus installed on either Win 7 machine, and both are now using Windows Defender Vista for anti-spyware and Windows Firewall - bad thing is when I checked neither is activated on either machine and the pop-up says these functions are being managed by NIS. Sooo, anyone have an idea how to fix my network and get the proper NIS displays? Any suggestions would be most apprecaited. :-)