It's likely a driver issue with the 64-bit operating system.
We're hoping this will be cured when Windows 7 SP1 is released later this summer.
Until then, I'm not sure what to recommend.
>did the NVIDIA patch
That is for Premiere Pro CS5, not for P-Elements... there is no CUDA support in P-Elements that I know of
Sorry, I meant to say that I updated to the latest driver verions.
I have the same problem, NVIDIA too.
Can you tell us about your nVidia card, and what version of the driver you have installed, please?
I have the 9800GT and the latest drivers : 257.21 (multi thread disabled)
My OS is vista 64 bits with 3x2 Go DDR3 and Core I7