Concerning the differences between CMM2/Windows coding approach, I mean, for example: as I am very interrested in the scrollable feature of the Framebuffer (using the FB WINDOW command), I'm concerned by the size it takes in memory; a 24bits colors MODE in Windows gives a bigger FB size in memory than a 8bits, just... the triple. On Windows it does'nt matter, but on CMM2 it is crucial, as memory is very scarce. If the MODE command in Windows works differently as in CMM2, the code is just, as you say rigthly, slightly different; I need to dig a bit more what I wanna do, and how to do it, to keep the code portable between Win/CMM2.