When I went to load the smoke box this morning, it was stuck....took some serious finagling (and a little prying) to get it loose. Now it doesn't seat as easily as it originally did. Getting much more smoke leaking around the box. Called Char Broil, they are sending me a replacement housing and box under warranty, but I'm trying to figure out if there is anything that can be done to avoid this. Anybody have this happen to them?