I'm curious. Is there anyone who owns a Class C that has not encountered a leakage problem in the cab of a class C? I thought that since I had someone caulk around all of the running lights (one of which had water in it) that my problem would be solved. However, water is not coming from the running lights or the window since it has been sealed. Where else should we look for the leakage problem? It seems like it is coming down the left side wall where the wall meets the bed platform. but no indication of the wall being wet. Any information would be appreciated.