I've recently built a new DAW with an upgrade to X2.  All of my old projects seem to play fine, with the exception of those soft-synth tracks created by Kontakt 4, which is no longer on my system; I now have the Kontakt 5 player.

The midi notes are there, envelopes and all, just no sound.  I have installed/registered the same Native Instrument instruments (Vintage Organs and Mark 1) and have downloaded any updates.  I assume its because I no longer have Kontakt 4.

Any suggestions?

Thanks,
James

Try inserting Kon 5 as a soft snyth in the tracks where Kon 4 used to be.

I can insert a new Kontact 5 soft synth, and even copy and paste the midi data from the K4 track to the K5 track, but I can't copy the presets (type of organ, slide positions, etc).  I can also "replace the synth", but it's still in the K4 folder, which I can't replace.
 
What I really need is to just load the Kontakt 4 playerback into X2, but I can't find a download link anywhere.

Not sure this will work. It's CNET so I would think it's legit.

http://download.cnet.com/Kontakt-Player/3000-2170_4-10161711.html