Timeline scripts not working!

Hi,

This may seem totally impossible - but I can’t get any script to fire off the timeline.

I have been given an fla, big animation about 15000 frames long, and no script will run from the timeline.

I have tried everything - reset classpaths, delete ASO file, rebuilt a fresh project from the original project’s layers…

There are no compiler errors

If anyone has experienced this then lend me a hand…I’m about to tear my last piece of hair out !

cheers

Emile