I have a Dell Dimension 3000 with XP SP. Slightly over one year old and no prior problems. I have a D drive for DVD and CD's and a CD-R drive (E). Recently the DVD drive does not function. If I put insert a DVD or CD it asks me to insert one although one is already in. I tried booting up with one in the drive but didn't work. I uninstalled and let it reinstall but didn't work. I updated the drivers also. I have a firewall, mcafee antivirus and several spyware programs running regularly and there are no current issues. When I run troubleshooting it says everything is OK. I have tried running from the D icon in my computer as well as "run". Nothing works. Do not know what to do next.