DeltaFPS releases fixed all my texture loading, lag, and crashing woes until 9/15 or 9/16. Since then the hard crashes started again, freezing me out of the OS. Screen goes completely black and may take several minutes to allow interaction to get control of Windows again. Noticing it more when using the camera (select target, zoom, pan), but it happens any time, in any region, even if I am not interacting with the computer.