I install firefox. reboot the puter, then try opening firefox, but get the message that "firefox is already running," but I know it is not running. So I uninstall firefox, then shut down the puter, and then restart again and install firefox, but again get the same message...... I'm running Windows vista, but I don't believe that's the problem. I don't have problems with Windows vista, and it has never presented a problem to me. I actually like it, but I'm not going for Windows 7 which is nothing more than a supped up windows vista, andI don't feel my needing it.