Due to the age of the sound card and checking on Dynex website it is unlikely
that you will be able to get drivers compatible with Vista.
You may have no option but to replace your sound card!!!!
There is no work around to get old cards to work in Vista that will give
good results.
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Regards
Bob J
If advise given from anyone, solves problem or not, or if solved from
another source,post back & let us know.
Then we all benefit.