daccs......If you are using Firefox, there is no way besides changing the default action to open the file in the reader rather than the webpage. I spent a couple of hours with Firefox savvy people on the mozilla IRC channel attempting to figure out what was wrong, but we never did....
If you want to change the default action to "open" instead of "display" do this:
Click Tools>Options>Downloads>"Veiw & Edit Actions"
Scroll down to the PDF section and click it
Click "Change Action"
Set it to however you want. Obviously, "use this plugin" won't work, so you'll probably want to use "open with this application" and select your Adobe Reader.