Wow-that is alot of lights! Some of the older Zoomed compacts were found to cause eye issues up to and including blindness. Why the 40 watt and 60 watt, and were you using the purple light at night? I imagine the temps get cold there, but no light at all at night and no heat unless your temps are dropping below 60, and that does not happen in most people's houses. If you need to use something for nighttime, a ceramic heater is better. Also, were you using a digital thermometer to be sure of your temps?
Understand I am not meaning to critique here, but to help you as I hope you don't give up on chameleons. It is far less stressful and easier on the pocket $ when you get everything right up front to keep them from getting sick.