I go to "Tools", "Options", "Paths" and changes "My Documents"
Works fine until I restart Open Office
Then is back at: C:\Portable\OpenOfficePortable\Data\Documents
That is done by the Launcher. But you can change it using the OpenOfficePortable.ini.
Copy it from /OpenofficePortable/Other/Source to /OpenofficePortable and change PortableApps.comDocuments=X:\Documents\ to whatever you want (in your case it would be X:\Users\msi\Desktop)
"What about Love?" - "Overrated. Biochemically no different than eating large quantities of chocolate." - Al Pacino in The Devils Advocate