when i was mixing K, i got out the old soundcard to try to play it through with autocross fade on (basically plugging more memory into the machine, like in the old days). it didn't work, for some reason the crossfade got munged up and i had to redo it by hand, but what it did tell me is that plugging the headphone socket into the line in socket is a valid method of getting around the fact that you can't just hit record and expect it to record the noise it's making.
what it also told me was that my little soundcard still worked (just the line out doesn't) so i stuck my mic into it and recorded a couple of acoustic things i've been playing around with. both open tuned - first in d major, second in d minor. hope you enjoy them.