Hi. I desperately need answers cant find them anywhere thats not charging $100/hr. I recently installed a ethernet port to a dell desktop cxe (manufactured 2001 I think). When I finally got on the internet I discovered everthing I attempt to stream is out of sync with the sound. The video is choppy and sound plays as usual. I have went to the dell website tried to update drivers and my internet speed is good. Do I have to swap cards?