Opera?
Heh heh...
Anyway, Goto:
www.lop.com. and click "help" in the bottom of the page. Read that, and it says "universal uninstaller" somewhere. Download and run, this should get rid of the bar (used it on a school PC once).
Ofcourse, those LOP bastards won't really remove all crap, so do a search for LOP uninstall in google, and it says LOP uninstaller uninstaller. I haven't tried that, but you could give it a shot.