Help! I bought an i-3 w/Windows 7 64 bit. Downloaded and installed Chrome. Worked like a dream for 2 days. Today I clicked on the icon, flashed something about admin rights and disappeared, just poofed. Can't find any Chrome files/folders, and when I try to reinstall, I get this message from Google: "google chrome is already installed and available to all users of this computer. if you want to install google chrome at the user level, you must first uninstall the system-level version installed by an administrator." How can I unstall what's not there? what does 'system level version' mean?