I recently update from the Pro-HD to the M1. I am disappointed in that the old Slingbox desktop software is not compatible, and that there is no "video only" option in the new player. One of the best features of having a standalone player is the ability to float the screen while watching. There is an option to keep the player on top of other windows, but you can't hide the controls or top menu bar, so whats the point? This is such an oversight, that I see no benefit for using Slingplayer over internet viewing.
Please bring back the video only option, or allow the old software to work with the M1.