Here’s the thing: Silent Night (see below) fixes the fan noise problem that started with 10.3.2. But the fan noise itself is a side effect of an Apple fix for the problem of the 12-inch Powerbooks running hot (which everyone has been complaining about since these suckers were first released this summer). What I would like to see, rather than a roll-back hack like Silent Night, would be a preference pane where you can choose between running cool or running silently (essentially switching between the older and newer versions of AppleADM103x.kext and the AppleADT746x.kext, depending upon one’s preference). If any coders at Apple are reading this, could you make this thought a reality? A third part hack that would switch between old and new would work, but I’d prefer it come from Apple. Thanks.