The Lighting Controller

I have the same problem. My show/timeline and live buttons worked perfect in the 3D window untill a sertain point. I don't know why it suddenly quit working. Everything works with the editor. When a working scene is saved and then placed on the live window, it doesn't work anymore. My show is saved under the 'lightshows' directory.
Even a show that has been running for 7 months without one problem on the same computer doesn't work anymore.

We see two possible raisons:
- the scenes have been moved to another location in your hard disk, then Live can not find them anymore (you can check the path in file "YourLightShow/Live/Live.ini")
- you have installed/updated an antivirus/firewall software, which now blocks communication between Live and ControlBoard

OK, It was a antivirus software (McAfee) problem.
Many Thanks for the info and help.