Frequently, while using JRiver Media Center, I lose mouse capability. Sometimes the mouse cursor just stops moving, and sometimes the cursor disappears altogether. Occasionally, I can "wake" up the mouse by hitting <esc>, but often I have to exit and re-load. Is this unique to me? I am running JRiver 20 on a brand new Acer computer with latest Windows. The computer is used soley for Media Center. No multi-tasking, or unusual processes running in the background.