There is firmware, and then there's FIRMware! Perhaps "Strictware" or "Draconianware" would better describe Apple's latest firmware update, which prepares G4s, PowerBooks, and Cubes for a Mac OS X install. Sure, Firmware Update 4.1.8 "includes improvements to FireWire target disk mode, network booting and system stability." But what Apple forgot to mention is that Firmware Update 4.1.8 will also disable your third-party RAM that used to work fine with previous Systems, but doesn't quite meet the new, stricter RAM specifications for Mac OS X. Of course, this could be Apple's way of weeding out the sissies who are unable to get OS X to work with only 64MB RAM.