Got a couple of problems whicj i wondered if anyone could help with: Arcam AVR200 Lastnight it made a crackling noise and the front panel display switched off. I "cured" it by switching the amp off using the main power switch (i.e. full power off, not just standby). Seems to be ok now, but what could have caused this? I'd only had the amp switched on for half an hour, so it wasnt running hot or anything. Arcam DV88+ seems to be pausing longer than usual during layer change. Any suggestions? Thanks guys.