haven't seen it before and also never use IE. a quick google search brought up a couple of "special" uninstallers to get rid of it, so it must not be needed. Check the start-up tab in your programs list and make sure nothing is there. then i would reboot again and try and uninstall. If that doesn't work, I would disconnect from the net and reboot again, so IE can't connect to anything. Then use the task manager to shut it down and finally delete it.
Our two party system is like a giant bowl of ***** staring at itself in the mirror ~ Lewis Black