Last night, we got a brownout. Everything came back except the master bedroom circuit. I checked the circuit breaker and it wasn't tripped (reset it anyway, for good measure).
After a hot night (window A/C was on the same circuit), I thought I'd see if maybe the A/C was the problem. I unplugged the A/C, and immediately the rest of the circuit came back on. I plugged it back in, and it went off. After a little more playing with the plug, I managed to get it so both the A/C and the room had power.
Any idea what can cause this? I'm nervous about what will happen with the next brownout, and if this is indicative of some more serious problem.