Audio recording keeps stopping...

Hi there. I have Cubase 5.5.3 and use a Quadcapture for the audio with my I3 Intel Core windows 7.
I choose inputs 1-2 for stereo in and 1-2 for stereo out but when I try to record before stopping , nothing records.
Also,I no audio is heard or detected in Cubase and only in my Quadcapture.
What’s going on?
Richard Steed