I did a quick search and nothing popped up, so maybe it's time for a new technical help thread. Here's what's currently baffling me: How is it possible for my laptop battery (which I bought last week) to be *draining* when it is plugged in and indicates that it is *charging* (the replacement battery is the identical model that came with my laptop)? The laptop itself is older than dirt (Gateway, bought in 2004/5), and I replaced the power supply (currently using a Targus APA01) in 2009. Do I need a new power supply? This laptop only needs to last through the end of the academic year (May of 2013).