[Flexradio] ATU not tuning

[Christoph - HB9AJP]

My ATU is not working properly: I hear the relays but when finished, there was 
no tuning. Is there a way to test the ATU manually or is there a toubleshooting 
procedure? I am using the sdr-100O with 100W and ATU installed, purchased in 
September 05, Delta44, v1.4.5 Beta7. Actually it never worked until now, was not 
sure from the readings if I still should wait for updates(?).
Chris, HB9AJP