I finally completed the upgrade to Windows 10. What a nightmare. Took forever to get sound working because there was no driver for my sound card for Win10 but found some workaround online.
Reinstalled Vegas without any problems. But now when I drag an MTS file onto the timeline, I only get audio, and no video. Also seems to be happening with some, but not all, AVI files. MOV and MP4 all seem to load up ok.
Does anyone know how to fix this issue?