Thanks Wizzz, for the advice.

I have tried that, but unfortunately it doesn't work.

If it's not too cheeky, I have uploaded the file I am working on:

swf: http://jimpix.co.uk/thanks2.swf
fla: http://jimpix.co.uk/thanks2.fla

The green bar at the bottom is the button which has the action on you posted on this thread. The idea was that it would move the duplicated m/cs to frame two, and in doing so change their color from green to black.

Any advice much appreciated!

Thanks

Jim