Command Center in playback mode seems frozen, but actually just stalls badly. If I watch close enough there is minimal movement and program is very unresponsive during this feature. Just happened over the last two or three months. Tried uninstalling and reinstalling, but no effect. Note that I can play saved videos through another media player by accessing the hard drive manually with no issues, any ideas? I am running Windows 7 64-bit Ultimate, I have 8 GB of ram memory and 1 TB memory on the hard drive. What can I do?