Problems with CI2+

Hi,

I got my CI2+ today and I can’t get it to work properly. The problem I have is that the Audio Interface sometimes makes a click sound and then all other sound stops for about 2 seconds. This is in general, not just cubase but everything; music, gaming, youtube, everything. I have latest drivers and I run on a windows 7 64bit 4 gig RAM.

Does anyone know what the problem might be?