Skin/Background help!

Hi guys,

I have a problem with the background of my skin and it's unsolvable.

Basically I added some stadium backgrounds to the graphics folder but didn't like the way they appeared in the skin (default). I then took them out of the folder and deleted them but some of them are still appearing in the game!! I can't get rid of them, does anyone have any idea how I can fix this?

Thanks

Perry