Hi, I have some problem with only Windows 7 x64. When I open any application, such as Internet Explorer, FireFox, Opera or even Netscape, the rest of the computer stops responding, except the web browser that's currently open. This is very weird, it doesn't happen when I open Windows Mail. I first thought that Internet Explorer was the cause, so I installed Opera. Once I open it, the start menu's button doesn't work or respond, I cannot access any other minimized application in the taskbar, nothing seems to be responding, except the web browser that's running. Basically, if I want to go on the Internet, I can ONLY use the web browser, until I close it, I can't use anything else. This isn't the Add-Ons in IE, because, as said, FireFox & Opera also does this. Even when just opening the application, it immediately stops the computer. Does anyone know why this is happening??? I used Google & it seems that a lot of people are experiencing this... I've even formatted my PC sevral times, the problem just occur again... After some time. This must be some application, but I just can't seem to find out what... Oh, it also happens in SafeMode, if I open a Web Browser (not even connected to the internet). Any ideas?