I think this is an issue with the video editing software. The soundcard seems to work fine; when the software is started (for the first time?) it complains of having no compatible sound card. I've seen it on a Dual Xeon with Terratec DMX 6Fire 24/96, as well as lesser machines. The operators just ignore it and carry on editing, with no apparent ill effects!
You could check out the Adobe forums, there may be a cheap card that will make the error go away.
Andy. (Should've made myself clearer in the first instance - sorry!)