The vibration from my speakers (typically the bass frequencies) causes deck B to stop playing (load B button flashes orange). Also, when people are dancing in front of me the vibrations through the dance floor also cause the same issue. The only way I get the deck going again is to switch off the controller and turn it back on again. I spend most of the night holding the controller up off my DJ table. Has anyone had this issue or similar? Any suggestions? I've spoken to some people who seem to think ot may be the USB por on the controllert (may need changing - but this doesn't account for why there is no issue with deck A) and/or getting a new USB cable to/from laptop (again, doesn't account for deck A having no issues). Help! Im at a loss. I've had the unit for approx 7 years. No other issues. The only other suggestion I've had is to place the controller on top of foam mats. TIA.