I tried upgrading to IE8 on Thursday night and something went very wrong. Now I have no toolbar in Internet Explorer (no 'Tools' option, no 'Home' Icon, etc.), I cannot download anything (I don't even get the option to run a file). Also, I cannot even open Firefox. When I click on the Firefox icon, nothing happens. I tried uninstalling and can't even do that. I tried System Restore - it only lets me go back to the beginning of March, so I tried that but no luck.