When I put a cd or dvd in my writer it won't read it. I look into my computer and it doesn't show that I have anything in my D drive. In my device manager it has a yellow balloon with an exclamation mark beside WAN miniport (IP) - AVG miniport driver, Microsoft TV/Video connection - AVG miniport and WAN Miniport (Network Monitor) - AVG miniport driver. When I click on them and go to properties I get the following message.. Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. (Code 19). My dvd writer worked fine yesterday and today it doesn't, I'm confused. What should I do?:(