Thanks Dietz
That didn't work either
Not to worry I think that the Edirol just isn't appropriate for my use (despite their protestations to the contrary!) and so I will buy another soundcard (BTW it offers buffers like 144, 288, 432 ......)
Only reason I bought the Edirol to start with was that the other cheapish soundcards didn't have XP 64 drivers - but Win7 64 support seems much better
Thanks anyway
Steve