Saulius -- That is so funny! I was going mad yesterday after we finished our session, and when you told me that ACP "crashed" when the roof was closed from within Talon 6, I started to feel like there was/is a missing piece to this puzzle. It makes total sense, and I must say this is the strangest tech support case EVER! I told you that I can almost always find the problem when it involves my software (not so much for broken/misbehaving equipment). I was soooo disappointed yesterday ha ha ha.