Disklavier

Hey folks,

I have a Mark IV and installed the 3.0 upgrade last summer when I
received it and am now wanting to play with controlling the piano via
my PC.  I am missing the DNA folder when I look at the folder list
from my computer.  

Is there a way to force a re-install of the upgrade?  I tried putting
the CD and floppy in and following the instructions just like it was a
new upgrade.  It quickly went through the process in just a few
minutes but I still don't have the DNA folder.

Any ideas?

Thanks!
   Brian