Thanks for your help. I saddly must say my problem remains unsolved.
I also tried your little GUI.
Nice work!! But didn't solve the problem.
Without the Connected Monitors XFree simply doesn't find the TV and cancels TwinView. Maybe it's because the TV is old? But I CAN get it to work if I set it as the only monitor.
Is there a reason why the CRT goes out when the TV goes on? There must be a way to keep the CRT on. Is it because it gets too low refreshrates? It shouldn't be, as the XF86config gives it the right ones.
It's weird. The CRT and TV works perfectly when they are primary, just not together.
I suspect the ConnectedMonitor line to contain a syntax error.
Any other suggestions? plz.