I have FINALLY set up my colour screen at home - and used the irrigation manager V4 for the first time. I think it is great compared to previous versions/programming hacks etc. I have noticed that if the Irrigation Master Control is ON, then the only way to turn an individual Zone off is to place a special button 'Stop Zone'. This is kinda weird because if the Irrigation Master Control is OFF, then you can press the Zone button to turn it ON/OFF - as you would expect. The other thing is if the Irrigation Master Control is ON and you press the 'Stop Zone' button - the next time you manually run a zone it takes two presses to get it to turn ON. A nice option would be able to 'Pause' a program - so you wouldn't have to start the program from the start again if you stopped it mid-way through. I think the 'Rain Delay' idea is a bit confusing and doesn't really work. I use a c-bus timer with a status display on the Master Control - but is limited to 12.00 hrs. I will come up with a code option for a 24hr option when time permits. Other that that - great job!