open GL is usually better then direct3d these days, but sometimes newer cards drop elements that enabled "legacy modes" for older applications, ive yet to try JA on my netbook yet, as it uses the Intel Chipset for video, but the HDMI out is handy, the machine wont run some older game, they just explode the models, but DX10 type games seem to work fine, DX9 or DX8 seem to screw up royally for me, the hardware is openGL based in my case. so I maybe facing the same issue as you soon It has to run JA since I can map while im not home, and its not useful if I cant test the work for me