I get an error message that reads c:\users\rick\appdata\roaming\microsoft\fsx\dll xml error on line 54 position 20. invalid at the top level of the document.I have no idea what that means or how to repair, any ideas?
This message means that your dll.xml file has been corrupted by another product so, our installer would not touch it, because trying to adding lines to an already corrupted product, might make things worse. Note, this check is made *before* making any modifications to it.
It would be easier if you just post your dll.xml file here, so I can fix it for you. Use the "Additional Options" with the Attach function, don't copy&paste the file in a message, because it might not work.