I am running the latest version of Vegas Pro 19, build 643. When I run it and exit, I get the VIDEO_DXGKRNL_FATAL_ERROR message in WIndows and windows crashes and reboots. The same happens with Vegas 20 Eval. Also, this error will popup at a later time, generally a few minutes after I exited Vegas Pro. In other cases, if I let a project open in Vegas Pro, go and do something else, and then go back to Vegas Pro, the system hangs and the error pops up again. I have GPU Accelleration OFF and Dynamic Preview set to 0 (Zero). What is happening here? Any clues?