I have installed [4/5/2011] Win7 SP1 (via windows update) on an Acer Aspire 1410-8414 notebook, with Win7 home premium installed. Now no browser [IE, FF or Chrome] will load any website. The computer connects to the internet, and media players will open streaming net radio and tv stations without a problem, and program updating works too; so it is just a browser issue. The strange thing is that the embeded web browser within Winamp does function properly, so only stand-alone browsers won't load. What I have done: 1] In Control Pannel>AdminTools>Services: computer browser and all relevant IP services are started and running properly. 2] In PC Tools firewall: unrestricted in/out privilages are allowed for all 3 browsers, and network status is "active". 3] There is no apparent conflict with Avast6 web or network shields. 4] I have reset/refreshed: winsock,ipv4,ipv6 and flushed dns. I can't think of anything else to do. I don't want to have to uninstall SP1 to be able to get online. Any ideas? Thanks.