I was having the same problem and tried every trouble shooting recommendation listing in every post… yet they did not work! BUT I did figure something out ^.^ The problem is NOT that the BIOS can't save the settings, since even after the battery was removed for some time. The settings I put in were still in the BIOS if I got to it by tapping F2! So…. The system must store the BIOS settings in another form of memory that does not need constant power ;) Flash memory perhaps? So I figured that the problem is that before staring the OS, the BIOS checks to see if the BATTERY has enough charge to complete a successful BOOT. But even if the bettery is dead, the system STILL has enough power if it is PLUGGED IN! So I figured that the BIOS needed to be active long enough for the battery to return a reading that “was up to snuff” to do a successful BOOT. ¿So what would keep the BIOS active long for the battery to read a consistent and sufficient power to achieve a successful BOOT?!?!? I added a system “BIOS” User...