My Digital Rebel is starting to act up and sometimes when I turn it on I get an Error 99 message. It's not every time, but maybe once out of every 5 times I start it up. If I turn it off and on again it's fine. I googled it and I guess it's an issue with the lens connection. Does anyone else have this problem? Some people suggested cleaning the contacts. If you have the problem, did it get gradually worse or bad all of a sudden?