Hi guys and gals, I have a semi-new laptop. It works great when it works. When i detach the ac adapter, it completly shuts off like there's no battery in it. When i pop out the battery, and press the button to 'check' the status of it, it's fully charged. I'll throw it back in and pull the ac plug and bam, it shuts off again. I have tried several batteries, all with the same issue. Could it be the mobo causing this? or the ac connector on the laptop? Any ideas? Thanks so much for your help. Any and all info is greatly apprieciated!