Hi, > > No. Why? You might confuse this with page flipping, but that is not > > what is happening here. Back and front buffer do not get swapped. > > Then how is it that you can sync the updates with monitor refresh? > AFAIK, that is only possible for a blit operation (both the source > and the target are in videoMem). I may be wrong, but I don't think > the > AGP or PCIe bus is fast enough for this operation, Rudolf? Syncing has nothing to do with blitting. These are seperate 'functions' Although GF256 and higher can do this explicitly inside the blit operations as well (but I don't use that, yet (maybe later if not much speed penalty)) Greetings :) Rudolf.