Hi Rocky - I got info on the 7D shutter from reading pro reviews - dont know which one it was. The shutter release button is ANOTHER issue with the xxD series. I also had some intermittent problems with the shutter button not working. That is due to dirt getting into the button mechanism. My main problem was with the shutter itself. It now freezes up when I take a picture. The camera shuts down with the mirror up and will not respond without taking the battery out and putting it back in. The camera is non functional. The repair cost would be at least $300 for the shutter mechanism replacement. Not to mention, I would have to repair the release button as well. That would add to the cost. To further complicate it, I would end up with another crap 40D shutter and a release button that could possibly fail again when it gets dirty! - This camera is crap - plan and simple. After the warranty is up you can consider it disposable.