Hi i just got a new compter with windows 7 and also sonar x2 producer the sound card i am using is line 6 UX8 that

i just install with all the drivers nesseserie before i installed Sonar but when i open a audio track in Sonar, in the track when i want to change inputs in I/O there is only one input to choos from but my mic is connected to input 5 i should have 8 inputs showing in my track I/O. is there enyone that could help? thank you......