Hi,
I installed VPX 12 last night. I clicked on the dialog to enable MP4 support, but I'm still getting purple boxes for MP4 files, and nothing on the timeline. Is there anything else I need to do to activate MP4 support (because the app is fairly useless to me without it!)
I'm running Win10 on an i7 with 16GB RAM and NVidia GT720

Thanks, Ian