...however upon opening up the WINDOWS volume mixer function I found there was a separate slider for FSX, not just devices, but for a program, not seen that before. Anyway that slider was at only 25% of the value that the speaker volume was set to, so i moved it up and Hey Presto! Accu-Feel sounds WORK , well all except for drag from flaps, but that's probably needing more tweaking from me, overall I think I have resolved it, I'm a much happier bunny now.
Eddie, when you launch FSX, this volume slider does appear in this Windows section, but this volume should effect all sounds in FSX, including Accu-Feel together. Are you saying if you turn this slider to 0, you still hear FSX sounds, but not Accu-Feel?