Try this URL from Adobe on configuring IE or AOL to display PDF files.
And other issues.
http://www.adobe.com/support/techdocs/98fe.htm
--
Henri Leboeuf
Web page:
http://www.generation.net/~hleboeuf/index.htm
"Joel Silverman" <(E-Mail Removed)> wrote in message
news:046f01c3a59c$4d3fbd90$(E-Mail Removed)...
> I am having problems opening PDF files in IE. I am using
> IE 6.0 and Adobe Acrobat 6.0. I get the error
> message "File must begin with %PDF-". The file will open
> if I download it, or if I disable the option to open the
> file in the browser. Is there some way around this, I
> would rather us the plug-in.
>
> Joel