Feel obliged to update my progress. What I elected to do was to re-install everything from X1 up. Ironically, I discovered Beatscape as a separate disc install with the boxed copy of X1 (and I don't have boxed copies of all versions). It was a time consuming exercise but in the end I felt happier that I had an installed copy of each version with it's respective plugins. I have the video tutorials for each version and sometimes it's nicer just to go back to that version while you're studying the video.
My only complaint with running several versions is that an earlier version will pick up the plugin for a later version and then tell you it's not authorised to run with this particular version. I suppose I can go to the plug in manager and ask it to exclude a particular plugin where this occurs.
Also, each version's content folder averages around 1Gbyte and I've assumed it's wiser to leave each version's content folder separate rather than copying everything into the one Cakewalk Content folder ( I welcome any advice on doing this).
Last but not least I had a little trouble finding my thread in the forum. Is there any way of quickly referring to your own posts on a thread in the forum?
regards, malcolm