Sonar controls VS-700C but not the other way around

Hi,  I have been having this issue for some time now and haven't had the time to trouble shoot it.  At least since I upgraded to X2. 
 
The VS-700C will respond to input from sonar X3 but not the other way around.  As the levels are changed via the mouse in Sonar the faders move, but won't respond when the faders are moved on the 700C.  The transport, records/edit, project and some access panel functions work as they should.  
 
Any help would be greatly appreciated.  FYI:  I am a long time Sonar VS-700 user and have tried all of the possible settings within Sonar and have the latest drivers and firmware.  
 
Thanks for your help.  
 
Vinny
 
Sonar x3
Windows 7 Ultimate