WEll, you could try being that way yourself. Your post at http://forums.adobe.com/thread/643309?tstart=0 tells us absolutely nothing.
If you can add a few details, we may be able to help.
Where did you get the PDF files?
Are you downloading them first or opening in the web browser?
What version of Reader?
Does Reader open at all or have you tried?
The more info, the better for you.