Last night I shut down as usual however, this morning when arriving in my office to switch on the laptop the Alien head on the lid was illuminated. "That's odd!" I thought, "I know it was completely shut down when I left last night."

Opening the lid, I could see it was indeed switched off but the power button was blinking. I attempted to fire it up anyway and it is working however; can anyone tell me what this means please?

Incidentally, mousing over the battery/charger icon it says "94% available (plugged-in not, charging)". Does that mean I have a charging problem or is the battery dying on me?