Thanks, Pityesz & Gab75, both ways worked a charm. I'm having a problem though going to full screen, I get a "FB Alpha Error, Problem setting '640x480x23bpp (60Hz)' display mode", seems no matter what resolution I set it at I get this message, also tried different blitters with the same FB Alpha error. I have an Asus N53S laptop, Windows 10 Pro, Intel Core i7 2670QM with two graphics cards (one on board I believe), a Nvidia GT540M 2Gb & Intel HD Graphics 3000. Using either card to display FB Alpha results in the same error. Anyone got any ideas why this might be happening?.