Have a look at the attached to see if youre comfortable with removing LOP yourself , looks like it is adware/spyware and heres how to remove it
http://www.smartcomputing.com/editorial/article.asp?arti cle=articles/2005/w1602/45w03/45w03.asp&ArticleID=25 540&guid=
Before doing so though,if youre happy to do so, I would switch off system restore, then do a full scan with Lavasoft adaware (Free download) and yalso our anti-virus and only when you are sure it has been removed, switch restore back on , otherwise the programme will remain in your bachup/restore and could start again, by disabling restore it removes the older saved settings.