I found that by going into \"System Properties/Performance/Virtual Memory\" and disabling virtual memory (something admittedly not recommended) clicks/pops and all sorts of other strange sound artefacts were completely eliminated.
I should point out that I have 192Mbs of RAM on my system, and do not know the minimum system RAM needed for this trick to work.
(I\'m assuming the lighbulb icon is the correct one!)
Since posting my original query I have discovered that the reason the loops were clicking was that they were recorded at 22khz rather than 44.
Those recorded at 44 loop without any problem.
Having now purchased a mixtreme card with the SP/Dif option, and finally got my head around the extremely flexible routing it offers, I now have no problems with the program. I currently run everything off the same hard drive, so I\'m not doing too badly.
[This message has been edited by Alistair Lock (edited 10-11-1999).]