Oh, geez, - when systems started getting faster, alot of the old dos applications started hitting funny "race conditions" in the memory/cpu. this boiled down to the application not getting what it expected, and would generally hang the system. so before you started an application that was designed for the platforms, you turned off the turbo mode, and then the bus speed (correct me here if I'm out of whack) would be pulled back down to the good old 8mhz. ccox at linuxsnob.com "Duct tape is like the force. It has a light side, and a dark side, and it holds the universe together..." -- Carl Zwanzig -- LINUX, because rebooting is for adding hardware! snob at linuxsnob.com