NitrOS9 sees the 2mb of RAM and uses it. There is one application that does not like the 2mb upgrade, so you can install a switch to make the Boomerang E2 function as a 512k upgrade. -[ Al ]- On 11/14/18 12:36 PM, Spencer via Coco wrote: > How does the "stock" software address this extra memory? Is it within OS9 or other?