The log is a lot longer than the first one. For the sound, in Sounds and Audio Devices Properties, it says 'No Audio Device'. If I go to device manager, everything looks fine but under Other Devices, Multimedia Audio Devices it has that Yellow Question Mark. When I open it up it says,

The drivers for this device are not installed. (Code 28)

To reinstall the drivers for this device, click Reinstall Driver.

I tried to reinstall but it doesn't work. I tried putting in my Dell Deivers and Utilities CD, and also downloading drivers from the Dell website.

Once again thanks for all your help.