I always open I.E. using the quicklaunch bar, but if I want to open another I.E. window using the same process the whole of the taskbar freezes. That's everything, from the Start menu to the clock, all frozen. The same thing also happens if I use a link from the odd website. I don't know if there's any connection, but I can't log in to my account on click here either. I've recently updated my McAfee Security Centre, but this still happens whether enabled or not. I've tried System Restore but cannot go back far as it wipes important stuff, namely iTunes. I'm running XP Pro SP1.