That really shouldn't be happening John. A backspace may cause it because it doesn't pick up a recent change but anything forward should be the skin you choose.
The orange is the default on the site so anytime you are here as a "guest" it will be orange.
Try this: Go into your user CP and go to "general settings" on the left. About three quarters down is a place to choose your skin. Set the one you like there and hit save. It might help.