MCE with Win Vista Ultimate has no files in library

I have an HP Pavillion dv7t CTO Entertainment notebook..core2 duo @ 2.13GHz, 4 GB RAM, 512 MB video, 3 TB external HDDs, BR ROM/DVDRW/CDRW.
My problem is that I went to watch a movie but all of the library folders are empty [I know better].

I have been up all nite trying not throw my PC out the window while trouble shooting. I have a degree in computer Science and I do not want to do a new install.

I have been on this site since 7 AM. Any help will be appreciated.

See if you can find them with shadow explorer
http://www.shadowexplorer.com/
They may have been deleted. You can bring them back with shadow.
You can also try do download and use windirstat, to see what is on your hard drive and where.
http://windirstat.info/

Thanx Richc46...I am trying it right away.

I do wish you luck.