Power button is orange instead of green on Canon camera?

I have a Canon SX20 camera and normally when I turn it on, the power light turns green. When it's connected to my computer or I'm in review mode, it turns orange. However, it is now switched. When I turn on my camera the light is orange and when I try to plug it in my computer it turns green! I've tried to look for the solution everywhere but it doesn't seem like this problem occurs very often. Please help!