Omega Striker 7.1 SPDIF in always has signal
I purchased a Omega Striker 7.1 sound card a while back, and have been using it for receiving SPDIF from my Xbox. (That way I can route it through my G35's, which are awesome.) I haven't has any issues with it until recently. I rebooted my computer to install some new case fans (and had all cables unplugged of course), and when it started back up it acted like it was installing new drivers for my G35's. I don't see how this could have anything to do with the sound card, but now the SPDIF in is constantly showing it receiving sound - even when there is no cable plugged in. If I set it to my default recording device, it sounds like rapid-fire clicks or pops at full volume. Any idea what happened?
Windows 7 x64
Core i7 930
RADEON HD 5850
10GB 1.6GHz RAM