Metadata doesnt load in Win 7 Media Center

[DangerIsGo]

I installed windows 7 on my HTPC and everything was working fine (this was several months ago). Recently, I started my HTPC and went to the Movies. Instead of having all my movies metadata show (which they did several months ago), only approx 20% of them show an image/data while the rest of them do not. There is nothing in the metadata cache folder so I have no idea what's going on. It doesn't look as if anything is being downloaded. Any assistance would be appreciated. Thanks in advance.