Hey I have a dell inspron 1501 running XP. Im not sure what the battery/ PSU is but when i start windows before it loads a black screen comes up saying the system cannot recognise the battery and will be uinable to recharge. It then gives me a list of options like press any key to continue which starts windows normally and when he cable is plugged in it still re charges. I also get another option which takes me to the BIOS. Does anyone know whats been going on/ happening?