Hey Carl,
Sounds like your Projection Zones setting are causing this...
You will probably find that the cues are not going to any zone, or going to zones with no scanner attached...
Go to the Cue Properties tab (behind the Live tab) select Projection Zones in the Image panel and click each cue in turn... Tunnels, sweeps etc should be set to zone 4, graphics to zone 1, beams to zone 9 and mirror balls to zones 15 through 19 (meaning they are set to hit four mirror balls)...
The workspaces are both set up to use multiple zones and Playtime is set up for multiple projectors as well... I can show you a quick way to remedy this at UKLem if you can hold on that long...
To get the best out of the zones, you need to get your hands on a certain Live Pro Training DVD when it's released


Mark