It may be that you placed it into Simple mode. It happens when you press and hold the Prog. button for more then 12 sec's. To get it out of Simple mode, you just hold the Prog. button for another 12 sec's. Simple error, happens all of the time. The manual for the CT-30 can be found at http://www.radiothermostat.com/documents/CT-30-Operation-19apr10.pdf
I have the same thermostat, but use the cloudbeam.com radio in it.
I have the same thermostat, but use the cloudbeam.com radio in it.