When You Click a Web Link, FileCenter's "Open" Dialog Pops Up
When you click on a web link, like in an email message in Outlook, a FileCenter "Open" dialog pops up. The title caption is "Locate Link in Browser".
While this seems like a problem with FileCenter because a FileCenter "Open" dialog appears, in fact it is an incompatibility between the Windows link handler and a third-party web browser, like Firefox. You'll find that if you hit the "Esc" key, there's a "Locate Link" dialog that has appeared. The FileCenter dialog has simply attached itself to this dialog.
The cause of the problem and the solution are described in the Microsoft Knowledge Base: http://support.microsoft.com/kb/821692.