Vista - Can't move folders (dialog freezes)

Hi,

I have a folder containing approximately 100 folders, each with many files
in them. I can't move these folders to another location on my computer. The
"move" dialog box comes up, but it never gets past calculating the size of
the files that will be moved. If I press cancel, nothing happens, and the
dialog stays there.

If I try to move a folder via the command line, it tells me that "Access is
denied".

So now I have several hundred files that I really need to move to another
location, and I can't. What should I do?

(I'm running Vista, w/ latest updates, on a lenovo T61 laptop)

Thanks,

- m