I'm having the same issue. Pinnacle sold this product to another company. I haven't tried this yet myself. Try downloading the beta drivers from here: http://www.pctvsystems.com/tabid/62/default.aspx/Downloads/Windows7BETAdriver/tabid/181/language/en-US/Default.aspx
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How can I get the late update for a Pinnacle TVC PRO to work with Windows 7
I'm having the same issue. Pinnacle sold this product to another company. I haven't tried this yet myself. Try downloading the beta drivers from here: http://www.pctvsystems.com/tabid/62/default.aspx/Downloads/Windows7BETAdriver/tabid/181/language/en-US/Default.aspx