Just starting to use new PC with Vista So far so good BUT no sound. There ara four plugs at the rear FS-SS etc and I have from my old sysytem a pair of speakers and one jack plug.Crawling around I find Realtek HDm working and speakers not connected. I'm completely lost. does this mean I will have to fork out for a different speaker system. Go easy on your reply as I,m a rookie,and a complete newcomer to vista many thanks.