[Ash.]

My desk runs through a port replicator for a Toshiba laptop, which is essentially a fancy name for 'USB Hub with a few more ports like Ethernet and VGA'. There was probably some abnormal interference considering the following list of devices are connected to it at any one time:

• Wireless Mouse and Keyboard Receiver
• Hercules DJ Console RMX
• Hercules DJ Console MP3
• Sony Xperia U Charging Cable (when at my desk, the phone is always plugged in)
• USB Power Supply for first set of speakers
• VGA Cable for secondary monitor
• Ethernet Cable for Network

As you can see, there are lots of things that could be silly here!