Pages won't close

[geo]

While surfing I will occaisionally have a page or ad
that will not close no matter what I do. The page is
there until I shut the computer down.

 

[H Leboeuf]

First thing rule out parasites.

Dealing with Unwanted Spyware, Parasites, Toolbars and Search Engines
http://mvps.org/winhelp2002/unwanted.htm