I tried changing some values on the graphiccard, but it seemed a never-ending challenge to keep Premiere from crashing. So, in order to meet a deadlin, I continued working and saved the project every time I made a change. Lots of extra sweat. The last crash was when I tried to export to AME. The second attempt to export the project got to AME and rendered with CUDA. Perfect. Then I went to work on a second project and every thing went as smoothly as it should. Not a single crash in several hours. The main difference in the two projects: for the one crashing every few minutes, I was using a long clip I had rendered three years ago with CineForm. (Don't misunderstand, I like CineForm.) The project that caused me no problems was made up of a combination of AVCHD(MTS), mpg and mp4 clips. Every thing worked as smooth as silk.
Some time later today I will try checking the CineForm files by transcoding them and starting a new project.
Thanx