I have 2 Win 7 PC's; I'm running HDHomerun Prime (3 tuners). WMC center breaks up or does not run smooth when on HD channels. CPU and memory are below 50%, tuner signals are at 100%. I have all latest updates for my devices, yet I can open HDHomeRun Quick TV and it will run very smooth with the highest picture and sound quality and will not skip a beat for as long as its running. What can I do to get WMC to run the same way? What am I missing?