I am using windows vista, my sound has stopped all of a sudden. When i use windows media player. I get the message that something is wrong with my speakers, i have tried to update my driver and a realtek driver was added. I have two dell computers and i did not think they used realtek sound drivers. So, i have 2 different drivers listed in device manager and no sound. I was getting a lot of updates for my computer and think the updates may have messed up something, but i cannot figure out what update to delete.