Gameman625
Many thanks for taking another look at this Premiere Elements 10/NVIDIA GeForce issue and its solution.
We are very pleased that there was a roll back driver version that was old enough to get your Premiere Elements 10 on Windows 8.1 64 bit working.
You did a great job in follow up and getting the solution to work for you.
Your report will help others in the same situation that you encountered.
Best wishes
ATR