[ubuntu-uk] Need help with SoundBlaster Live! 5.1 card

[John Watson]

Thanks for replying but I had already checked alsamixer(gui) and the 
gnome volume control ;)

The analogue sound is fine (to my headphones). The digital out does work 
BUT only works if I play a Dolby Digital source. If I play a simple mp3 
/ stereo file, nothing is heard from the digital out.

So somehow stereo sounds are not being passed through the sound card (I 
guess). I thought there might have been a config file in my home dir 
causing this, si I created a temp user and tried in that account. Just 
the same. It would appear that some app must have changed something.

How can I search the logs for only files that have been recently 
installed? Is there an apt / synaptic log?