Per your suggestions:
1. I'll have the circulation switch checked.
2. I'm talking about the a/c fan running after shutdown. Even my mechanic thinks that the fan is running far too long after the engine has been shut off. It's probably running as it can and then probably cuts off since the max time has been exceeded. Thus the humidity problem doesn't clear up. But where is the moisture coming from? I think that the humidity may be due to the leak, as I indicated, that was fixed. Probably the interior never dried out completely.

I'll be seeing my mechanic in a month or so and have him check more into it. I'll let you know what he finds.

Thanks