Thanks for posting!
Please note that we have not tested FileMaker Pro 9 with Windows 7 so we can't guarantee compatibility.
Are you installing from a disc or a download? If it's a download, try redownloading it, uninstalling FileMaker Pro 9 and reinstalling using the new download.
As a test, can you try with the FileMaker Pro 11 trial? Please see your inbox at the top of this page for a message from me detailing where to get this.
Does this issue persists in a new user account? A new user account can be setup in the Users section of the Control Panel.