I just bought a brand new HP Pavillion ze4200 on Wednesday. I set it up, plugged it in, and thought it would charge overnight. It didn't... and according to the Control Panel, the battery had 0% charge. I looked in the user guide, and it said that if the battery light flashes when the AC adapter is plugged in, it means that there is something malfunctioning on the battery. The battery light was flashing. Anyway, I finally got some time out of my busy schedule to go back to the store and exchange this computer for a working one. So, I get back home, plug it in... and guess what... the malfunction light is flashing again. I've left it plugged in for three hours now and the computer still won't power up without being plugged into a wall outlet. Am I terribly stupid, or can it really be the case that I got two computers in a row with faulty batteries? I know what you're thinking... if they're the same model then it's possible that defective batteries were placed in all the laptops on the assembly line. Guess what though? Although these two computers are the same model, they came in different boxes which means they were assembled at different times. eNtRopY P.S. Another thing I don't like about this ze4200 is that if I type too fast (or if I don't press hard enough on the keys) then some of the letters do not appear on the screen. Has anyone else noticed this problem with other laptops?