Hello again.
Thanks so much for your previous help.
I am now in the very same predicament as I was before, and now even after clearing the cache, changing to "CPU only" and also changing to the MPEG4 compressor, I am getting a frozen video image with a green bar across the top, although I do have audio.
This is very embarrassing but I really don't know anything about computers, despite doing tons of home editing using NCH for many years. I didn't answer the last question about my GPU/CPU/RAM because I don't even really know what that means. I know my RAM is 16.0, my processor 3.40GHz, but am unclear on what the other things even are, even after doing a google search on how to find them. I'm an old lady, and that's my excuse! (hangs head in shame).
I recently purchased the upgrade and it seems to be working worse than before. I truly appreciate your help because I love the software!