I've recently purchased a used 2008 Roadster and today it was warm enough to try out the AC. I have seen the threads about how poorly the system can work, but I haven't seen anything concerning the issue I am seeing. On my 30 miles trip back home today, I turned on the AC and it started working fine, but within 10 minutes the AC stopped working. I looked down to see that the Blue light had turned off so I turned it back on and started looking every so often. At one point I noticed that the Heater light turned on too, but the AC seemed to still be working fine with both lights on. I did not keep track of the combination of indicator lights turning on and off, but I also noticed at one point that the recirculation light had shutoff too. During the 30 mile drive and 45 minutes of driving, the AC light shutoff, three times. Is the car trying to telling me something is wrong with the AC or do I have some kind of electronic problem?