see kml file

I had saved a kml file onto my desktop.  Installed basecamp and trying to import the file.  When i try to import and point the file browser towards my desktop files... it does not see the file at all.  

I toggle to file types to force the showing of KML/KMZ files and still does not show any files on my desktop folder.

I doublecheck in my file browser and can see it from there... but not from the basecamp file browser....

Any advice?

Thankls

Andre Allard