...they are suddenly all just audio!? They are AVI files and suddenly I went to open them up and they show as just audio. There isn't any video. Even ones that I have watched before are just now audio. Does anyone know how to fix this?
You may not have the necessary codecs on the machine you're trying watch them on. Check for an exclamation mark beside the item in the Now Playing list indicating a problem. If you know what codec was used to encode them, download the necessary decoder.