Update:
Apologies for the delay in posting back here...
So, I got a new PRAM battery installed it then started from scratch with the Delta 44 installation - unfortunately same result, i.e. no sound at the outputs
I gave up for a little bit then managed to find myself a second-hand Edirol UA-20 and the OS9 drivers from Macintosh garden.....
Success!!! - sound at the outputs, plus midi in & out
Finally I have an ASIO sound device working on my Quicksilver!
- not sure why the Delta 44 never worked for me on the Quicksilver when the model has worked fine for others - the Delta 44 can go back to one of my Windows boxes.
Anyway, a big thank you to all here for the time, effort (and typing), you all put into helping me troubleshoot my issue.
Thanks heaps guys
best regards,
blaylok