I have a Compaq Evo N1020v laptop and this is my problem: the battery is dead for a while now, but every once in a while (I tend to think it's everytime the laptop stays disconnected from the AC power for more than 10 hours), the BIOS resets itself 🙁 I've already replaced the small CMOS battery and still nothing 🙁 when I said the battery is dead, I meant the big one, not the CMOS ... what might cause this ? It's frustrating to have to setup the BIOS daily 🙁