[Cube] Speakers & Sound

[Richard Willis]

 Hello everyone, 
I've had my cube for about a year now, and I have been working without
sound. No speakers came with my system. I purchased a pair of Benwin USB
speakers and plugged them in. When adjusting the sound, I get the tone but
then no other sound. I am on OS 10.2.8, 450MHZ, 256 MB, 20 GB. Does anyone
have any suggestions or tips as to what I can try. Thanks in advance.
Richard Willis