zaaphiel

Hi, I have the same setup and I just installed DR and had the same problem. Got a dual/quad core chip? I fixed it by setting the process affinity in the task manager to only 1 (one) core. Doesn't matter which one you choose, but soon as I allowed the darkradiant process to run on any combination of 2 or more cores (up to 8 virtual cores) I got problems with the display and drawing of the surfaces that make up the workspace of DR. Hope this helps