Adobe Reader XI PDF Thumbnails: How do I enable previews?

Folks,

New build going with Adobe XI installed on W7/64 Home Premium.

None of my pdf file shortcuts have thumbnail previews. They all show as generic pdf files with their names beneath them. How do I get their icons to show as previews of the files they represent?

In other builds I had the first page of the pdf as the icon.

Searching, I've found offers for regedits, and software installers to fix this. I thought I'd come here to get the professional responses.

Any help?

Thanks,
Ken

Thanks. I tried his programs and they didn't work.

Here's an example:




On the right, "B", is the actual PDF file. It has a preview image. Cool.

On the left, "A", is a shortcut to the pdf. It does NOT have a preview image.

Is there any way to get the shortcut to have the same preview image? I'd like "A" to look just like "B", with the addition of the shortcut blue arrow.

Ken

I am experiencing this same problem and was wondering if you were ever able to sort it out.
Did not have this problem with Windows 7 Pro 32 bit, but now have it with Windows 7 Pro 64 bit.
Thank you.