Thanks xCept and JohnnyMeek. I don't want to stop the tweens, just pause them, so don't think using StopTweenxxxx is the way to go. I'll take a look at the Tween Library after I get this project out the door (it's very nearly ready to publish and I don't fancy a big re-write at this stage).
Hopefully TGC will get more resource to the AppGameKit development for little improvements such as this, leaving Paul free to deal with the big stuff. I keep buying the odd TGC product every now and then in the hope that I am helping achieve this dream!