GStam66

Ok, a while back I started up my car, shifted into reverse, and had the stereo and A/C going. Upon shifting into reverse, I heard a loud POP noise, and all power cut off. Sounded like a short. I started the car again and the gauges swept, ABS light came on for a while, and it was running kinda weird, idling between 500 and 1200 rpms, and when i revved it, it sounded pretty weak. Shut off the A/C, and the car ran fine again. Next day i tried running the A/C and everything was cool... Until now. Now my A/C isnt producing any cold air anymore. When I heard the POP, i checked under the car for leaks/broken parts/whatever, found nothing.

Any idea what mighta happened?