Music Stops playing once it starts playing.

My music will play for around 16 secs, then the sound just drops or hung up, then I must pause my song thats hung up in lost sound. I have the main profile turned off, then I set up a profile for my Cd Player-Tower with PCLINK.

But the thing is once I try Sound Preferences, the profile thats turned off is always highlighted, so I click the 2nd profile, then test. The sound works, but once I click a song to play it just happens again in the same way.

Sound Effects- Alert Volume: Middle
Sound Theme: Ubuntu
Alert Sound: Default| From theme
1st
Hardware- Internal Audio (Disabled) Off
2nd
UAC3553B-1 OutPut| Digital Stereo Duplex (IEC958)

Input- N/A

Output- UAC3553B Digital Stereo (IEC958) Stereo
Settings for the selected device:
Balance: Middle

Applications

Rhythmbox: 90% Volume

Mute: OFF

(This PROFILE IS DISABLED)
(1st
Hardware- Internal Audio (Disabled) Off)

&

(This PROFILE IS MY PC-LINKED STEREO)
2nd
UAC3553B-1 OutPut| Digital Stereo Duplex (IEC958)

Some how, whenever I play music the PROFILE changes to the 1st PROFILE that is turned off.

I would like it, if the music would stay playing and stay in the correct music profile.