I can second that this works. I was having this same problem on my T40 -- Quake 3 was getting bad FPS when in battery mode. I went to display properties/settings/advanced/powerplay tab and de-selected powerplay and then my FPS went back to normal.

Thanks for the tip.

Hello all, I have a WinXP SP1 / Linux Slackware dual booted T40, with the 1.5M Processor and 768MB of ram. This question refers to my problem while in XP. Often, when I am typing in a text editor (I commonly use VIM for Windows, and therefore notice it there the most), my keystrokes begin being buff...