Hi guys I have upgraded my PC and am having 2 issues.
1) getting my usb midi controller to work again. ( Ashton keyboard. No drivers required )
2) Inputs/Outputs on tracks.
 
The first issue - I have added midi controller. Its input and out put are all selected tu UX1 ( which I am using as soundcard ) But Im using a USB port for its input. The input menu does not give me any other options.
 
The second issue Ive been fudging for years. I really have no idea what my input/output selections shouls be for each track. Im given a miriad of options ( UX1 LEFT, RIGHT, OMNI??)
When I hit on a selection that works, i stick with it. Hit and hope!
 
Any help is GREATLY appreciated.

In Sonar you have MIDI tracks and audio tracks. The MIDI tracks are used to record data to control either external synths via a MIDI interface or softsynths via the soundcard. MIDI tracks only contain control data, not audio. The audio tracks contain audio information received via the soundcard inputs and played back via the outputs. 

On MIDI tracks, Sonar receives any MIDI data sent to it regardless of how many MIDI interfaces you have. So you can leave the input set to None (which is the same as OMNI) and it will receive whatever you play on a MIDI device. 

On audio tracks, you have the option to select either mono or stereo inputs. Instruments like microphones or guitars usually are mono since there is only a single output cable plugged into the inputs. On the other hand, synthsizers or guitar effect boxes are usually stereo and have 2 outputs (L and R). So if your soundcard have two inputs, 1 and 2 or Left and Right, you can select as the input to the audio track in Sonar 1/L or 2/R which will record a single (mono) track or stereo 1/2 which will yield a stereo track. Don't record mono sources onto a stereo track or you won't be able to pan it across the stereo field. 

Hope that helps.