I live in South Bucks but will travelling to Cheshire this weekend hence the reason for calling in at DV Brum on the way up. I will see how things go there and let you know the results.
Hugh, I did the headphones test on the onboard soundcard. Clear as anything. Can’t do a test on the M-Audio (RCA outputs) unless I wire up a L/F RCA to stereo jack. DV may have something which will save me the effort.
Also, having checked my old P4, I can confirm there is a slight buzz coming from my old P4 but it is nowhere near as bad as the cacophony I am experiencing on the i5.
Edited by MartinJG (05/04/12 10:42 PM)