I am having issues with Reader X in Internet Explorer 7 on a Citrix Terminal Server running Windows 2003 SP2. When I click on a hyperlink requesting a dymanic PDF file, it opens a new IE window, then displays a gray box. If I delete and re-type the last letter in the web address it will re-request the file and correctly display the file. At another web site where I request a static PDF and it opens correctly but it uses a frame in the original web page. This issue happens to both standard users and domain admins. Also the webpage that we have issues with will render correctly from IE7, Reader X on a XP system.
I find it does the same error on this website when I request to view the thread as PDF.