Microsoft Media Player add on problem

[Damned]

Hey all, having some issues with MS Media player while trying to watch videos. When I go over to the episodes tab, I got a message saying that "this website wants to run an add-on from Windows Media player, do you accept?", so I did, and unfortunately, it seems as though another video control bar appears below the one for the regular media player. I've been trying to get rid of it, but to no avail. Does anyboady have an idea of what I'm talking about, or do I need to be more specific?

EDIT: well, I got a chance to say whether or not I wanted to allow it to run, so this time I chose no, but, well, I get no screen at all, just a white picture with a red x at the top left hand corner of the picture :(. I have not installed Windows Media Player on this computer I just finished building, I have Media Player Home Classic installed instead. I also seemed to notice there are black borders on the top and bottom of the screen in fullscreen mode, were those always there?