Ah... OK, I have the CD for OS9.0.4... close enough I hope?
Actually in any case I was thinking of "sort" of a clean install as in a new system folder with the newer OS and then merge with CC to get back prefs, extensions etc.
Was mainly hoping to avoid needing to install "everything" fresh.
Yes, Kelly I have full installations of both 9.0.4 and 9.1... I found 9.1 to be much more stable than the earlier 9.x...