So Vista was suppose to be easier on laptop batteries then XP. I’m not convinced, my Dell D820 last ~2 hours but should be getting close to at least 4. I do have Aero turned on and will confess I have lots of windows open at a time + background services, but still 2 hours is no good. I’ve been manually switching off Areo for the last week or so but that is a big pain in the arsh
Today I found Windows Vista Battery Saver. This looks very promising, it automagically turns off Aero and Sidebar when the laptop is running on battery and it’s open source so you can peek at the code that manipulates the theme on Vista.