Perform a Clean Reinstallation of Graphics Drivers

1. Download the Display Driver Uninstaller (DDU) utility. 2. Boot your system into Windows 'Safe Mode'. 3. Run DDU to completely purge all remnants of current GPU drivers and registry entries. 4. Reboot into normal mode and install the latest stable driver package manually from the manufacturer's official support portal. 5. Launch CasparCG and attempt to play a media asset to confirm the conflict has been resolved.

Sources