Re: can't run laptop off of battery
Battery Drivers. Had the same problem with my HP DVseries. Wouldn't run off of the battery because it had improper drivers for the battery. Check IBM's website for battery drivers/firmware updates. It's also a narrow situation to change OS's on a laptop.
RD-PC -//- i7 950 // Evga x58 SLI // 3x2 OCZ PC3-12800 // 2x Evga GTX470 // Corsair HX850 // SilverStone TJ07