OK, here's the story, I downloaded the new mame source and compiled it, no problems. I have a newish computer (got it last christmas) running XP. Video card is a Radeion X850 Series (can have 2 monitors plugged in although I only use one), and the display properties show Direct3d as being there. Go to command prompt, enter >mame anygame It says: Proposed video mode not supported on device \\.\DISPLAY1 Unable to initialize Direct3D. osd_init failed and then throws me back to the desktop. I tried ddraw and gdi, and these work fine. It's just d3d that is troublesome. I ran dxdiag and all tests were passed. Guess it's a computer problem, what do you suggest?