Thanks so much for the link. Yes, I installed the version you sent me for version 8.45, and it is no longer stuck on "Processing".
However, the video is appearing as an icon in the audio tab on the top left and not in the video tab, and when i drag it into the bottom right section, it doesn't appear to be a video file there because it doesn't have all those lines showing you the audio level. And when I hit "Play" anyway, the cursor appears to be showing the audio advancing, but no audio is playing so I can't hear anything.