I have a VP-50 and I believe it is a better unit than the Pro. I think most people were lured in by the Pro with features that never seemed to be fully functional. Also, if I remember correctly, at about that time of the Pros release DVDO was being sold or reorganized or something like that. I have never had any issues with my unit other than the power supply has been replaced twice. Although, as time progresses I can see problems happening with older equipment with older firmware, similar to new DVDs not playing on very old players. I think I will always use a hub. I like having 5 sources but only sending 1 HDMI cable to my projector. As a suggestion, I would check your cables (maybe even switch them to see if the problem remains), blow out the connectors with compressed air, clean cable contacts with contact cleaner, unplug/restart the VP, if you are using any optical cables they could be damaged/dirty....Just my thoughts. Good Luck!