[oXygen-user] Drag to oXygen Dock icon (OS X) doesn't work

> I cannot drag .html files either, but I can drag .xhtml files, so I
> suspect that changing things in either the "File Types" or perhaps
> the "Document Type Association" panes of the preferences would do the
> trick. 

Nope, changing the "File Type" setting did not seem to work. This
seems to be an OS-level thing. (Which, thinking about it, makes
sense.) 

When I look at "Get Info" for a .html or .txt file, Finder does not
even list oXygen as a possible application I can choose to open it.
I'm guessing that my oXygen 9.1 has not told my Mac OS X 10.5.1 that
it knows how to open .txt and .html files.