Windows 7: MCE7 TimeShift not workings

Hi all,



I'm running windows 7 64bit and using a leadtek dual HD tuner card. Recording TV and playback all works well.

When watching live TV however I can't rewind more than one skip on the remote. If I skip back futher the image simply fades to black. I can keep skipping the time around but no image is displayed. Sometimes with some fiddling and returning to real time it comes back but often without sound.

Anyone seen this before????
Skipping on recorded TV works perfectly in both directions. The issue is only seen using the live TV buffer.

Thanks in advance,
E