I'm having a charging issue with my M5-581T since upgrading to the latest BIOS (2.03). If I turn on my laptop while plugged in it charges fine. Windows shows it charging and the percentage increases. However, if I then unplug and plug it back in it does not charge correctly. Windows says it's plugged in and charging but the percentage does not increase. The percentage doesn't go down either. It just maintains the charge level. I then have to restart for it to charge successfully and the percentage to increase. I also tried booting into Linux and noticed the same behavior. I had no issues prior to upgrading the BIOS. Is anyone else experiencing this same issue? Does anyone know a way to downgrade to a previous BIOS?