I just ran some old Direct Draw code in windowed mode and found my frame rate had dropped from a steady 85 (my monitor vsync rate) to about 20fps. Running it full screen was fine. I tested some other old Direct Draw programs and they all suffered the same problem. I have a GeForce 4600ti and the only change I''ve made recently is to upgrade the NVidia drivers to the latest version (45.23) Can anyone else confirm this is happening to them too? If so, people still developing Direct Draw apps intended for release should bear this in mind.

the 45.23 drivers have been confirmed by nvidia to being buggy. You''ll just have to use the older drivers, or wait till they release some new ones.