Ok, since I moved house I've been getting inteference from my powerline networking kit over my speakers. Whenever I use the internet, a screeching noise comes over the speakers, particularly the powered one.
I've tried moving the cables around and trying to increase the distance from the speakers to the powerline port but to no avail. Even if I unplug the stereo jack from the back of the PC, you still get the noise.
Anyone got any more bright ideas on how I can reduce/eliminate this interference?