The repetitive popping up sounds like a virus. Have a look through the thread below & check out point 4
WARNING: Viruses on the network you should be aware of

If this is the case, then just uninstalling LW won't stop the popups - the virus is still around. If your boyfriend needs help to clean up his computer, he can always go to Norbiesworld & get some free computer help (Norbie has helped a lot of LW users who've had this virus) He needs to make sure that he's using a good AV program, keep it updated & scan all downloaded files before opening!

*Reinstalling LW is one way of removing an old version, as LW will automatically uninstall an existing version prior to installing the new one! If you've manually deleted all LW files & folders then I'd say it's a virus The correct way to uninstall LW on Windows is via start > all programs > LW then use the uninstall option. Uninstalling through add/remove programs can cause problems!!