This has to be simple to find but no luck. Can Windows 10 play a movie with the "Cast to" feature through the hopper? I can "see" the hopper as a target in the Windows 10 context menu on a MP4 file. When I "Cast to" I got a popup (once) on the Hopper asking for permission. About half the time I can get the hopper to go to a black screen like it's ready to receive, but then the PC gives an "unexpected error" with no details. I have also tried with the PC firewall off (no change). Is this supposed to work? These are home movies, nothing with DRM, and I could change formats easily if it's a format issue. I see there are software packages that appear to provide this (e.g. tversity) that I have not tried, as I always want additional software as a last resort. On a related note, can VLC do this? I tend to use that as a player on windows itself, and I know it can do transcoding and streaming outbound, but not sure how to address it to the Hopper. Same with FFMPEG which I keep around for transcoding.