Audio Play Back Distorting

My Cubase 7 has started to go a bit wonky.
Some times when I play an audio file it starts to distort and pop and carry on even after I have hit the stop button. If I reboot it’s OK until the next time it does it.
Orch

Hi,

Try to increase Buffer Size of your Audio Device, please.

Devices > Device Setup. Select your ASIO driver name, and click to Control Panel. The Control Panel of your Audio Device appears. Increase the Buffer Size or Latency value here.