here something additional about the settings that might be important.

Audio Driver Setup in RealBand :

Audio Input Driver(s) :
-----------------------
Microsoft-sound assignment (?)
IN (UA-700) <- chosen

Audio Output Driver(s) :
------------------------
Microsoft-sound assignment (?)
OUT (UA-700) <- chosen
Realtek Digital Output (Realtek High Definition Audio)

Midi Driver Setup in RealBand :

Input Driver(s) :
-----------------
UA-700 MIDI IN <- chosen
UA-700 CONTROL

Output Driver(s) :
------------------
Microsoft MIDI Mapper
Microsoft GS Wavetable Synth
UA-700 MIDI OUT <- chosen
UA-700 CONTROL

Does anybody know what the 'Microsoft sound assignment' relates to and if its possible to exclude/remove these from the options?

Valentino