[BUG] Cubase 6.03 - audio glitch while enabling metronome

Now I’m using Cubase 6.0.5 and I have a serious issue.
This glitching sound occurs anytime I do something (record, play midi, even add an audio track or fx) and my audio cuts off but the glitching sound stays on until I quit Cubase… Sometimes my audio just cuts out without any reason…

Annoying… :question: