For Christmas I received a protective glass cover for the LCD on my Canon 7D. It had adhesive strips around the edges to adhere it to the camera. suffice it to say that it did it's job, but now it is pretty well cracked, and I need to get it off so I can replace it. Has anyone done this before? I don't want to start trying to peel it off (it's on pretty solidly) if there is a better way to do it.Thanks for any help.