I installed Windows XP Professional once again in Virtual PC 2007. When I open Internet Explorer, only a couple of sites are working, for example: Google isn't working. I set Shared Networking (NAT) adapter in Networking in Settings. I tried IE6 and IE7. Also tried IE8 and all sites are working. Is it a reason that a lot of sites aren't supporting old versions of Internet Explorer or not? Because IE5 is working normally on Windows 98 virtual machine. How to solve this problem? Thanks.