Well, Mr Rats, that's very interesting, cuz that's exactly the same error message I get when I try to use the digital I/O on my fucked up Gadgetlabs soundcard - in my case it's telling me that things aren't talking to the soundcard. In your case, your soundcard is alright, right? How about looking at settings for the soundcard, though? My Computer > System > Sound Devices etc Is it working okay?