OK, an UPDATE TO USER DK ISSUE...
The work around is to individually save each DK on OS PA800 v1.6 (or PA2XPRO 1.11), then save the SET too.

Afrer installing OS2 you load each DK back in. Once this is done, you can freely backup the DK as a SET and could reload it as a SET if needed.

The details are on the Korg PA forum.
Here: http://www.korgforums.com/forum/phpBB2/viewtopic.php?t=39191

Meanwhile Korg IS working the issue and we will have a solution soon.

Lee

[This message has been edited by leeboy (edited 11-25-2008).]