specifications of the card: pinnacle pctv HD pci card http://www.pinnaclesys.com

I used TVtime Television Viewer I get video play back using A/V adapter cable but no sound. i connected my Nintendo 64 to the card video play back looks Bleary on sound side of things i get no sound the video look fine. when i change the screen size smaller. I cant get TV at all to work

problems sound/TV not working I do not care mush about the tv part not working. but I do care about the sound not working

Any help would be nice thanks