I'm using a GTX Titan and the checkbox for GPU-Z remains unchecked. I've erased every previous version of GPU-Z, downloaded, erased and redownloaded version 0.6.9 numerous times and the checkbox always remains unchecked. I also opened the Nvidia Control Panel, enabled the PhysX indicator and ran several games, all showing PhysX is enabled. I redownloaded version 0.6.9 again, about 5 minutes ago from TPU instead of MajorGeeks, as I usually do. No change. Any ideas what may be wrong?