Theatre Stack Pearl 2000

[Pattern123]

Just trying to put a few states in Theatre Stack to make a show easier to run for student operator. Programme Cues as per manual, no problem, adjust timings etc as per manual, no problem. Go to playback as per manual - nothing outputs except what you add in manually outside theatre stack, looks like cues are playing back on VDU, but no output, whether Fader 12 at full or at 0. Any ideas? Really would like it to work by tomorrow if poss, otherwise he'll have to run show off rollacue which might be a bit complex.