Thank you Koos.
I will have a look at what setting that function buttons is set to.
When I read thru this thread one of you're earlier post's was about CV54 and it came in pretty useful when I did not have the Lokprogrammer.
Directly after installation you can just quickly use this method to test you're loco's slow speed performance.
One thing that I might add is that the combination of Atlas locomotives and Loksound decoders are really nice, at least for me that is.
The B23-7 in CSX colours are so smooth and quite(when sound are muted) that I have decided to sell my other loco's and get two more Atlas models.
One BNSF GP38-2 from j-t prantle on ebay and a BN GP40-2 also from ebay.
Now to save up for two more decoders!
Cheers!
Jacques