Hello Everyoine, @Frédéric Delanoy No am not in the .git directory. @doh123 & kuboode Thaks for your input. I had a one or two hard lock while testing for the bug and have to restart my computer. Is it ok to just log back in to the wine-git directory and tell it was git bisect bad after the hard lock? If this ok to do this is what i got from my regression: 68b15bc5ffe6ddf5d08cbc13479eaf718ad5e39f is the first bad commit commit 68b15bc5ffe6ddf5d08cbc13479eaf718ad5e39f Author: Stefan Dösinger <stefan@xxxxxxxxxxxxxxx> Date: Tue Apr 19 21:24:26 2011 +0200 wined3d: Give GL_ARB_map_buffer_range another try. Nvidia's 270.xx.yy driver series fix the glMapBuffer alignment issues that caused major performance problems. If the user is using an older driver we now drop the VBO instead of using doublebuffered loading, which means that we fall back to the current behavior(no dynamic VBO) as needed. Dynamic VBOs are needed on Nvidia drivers for GL_ARB_instanced_arrays. :040000 040000 0cada15043b731febf2ef2a673aaaecc4af75f8d c474ade74a8db2a9c547674dbb4c809841087a3d M dlls