>Does anyone have code or pointers for detecting if the Mac an application >is running on is a PowerBook ????? Get FN GESTALT with the _"mach" as the type. It will return a number you can look up to see if its running on a PB. Good think Apple is the only one making PB's these days... macType=FN GESTALT(_"mach"):' get the type of mac 24= pb100 25 = pb140 I don't know what the rest are.... Humm, if you are going to run this on System 6, might be a good idea to check for the GESTALT manager before you use it... You can also use FB's SYSTEM(_machType) command to find the number. Mel Patrick - theWabbitGuy - mel@... http://www.intergate.bc.ca/business/mel