Thanks for all the replies!
I'll try to answer in order.
When selecting an audio clip, Shift-v does nothing. I don't seem to have V-vocal anymore?
I've got all the tabs in track view, its just that clicking Region FX does nothing. All the others work as expected.
Full reset and re-scan. No change.
Yes, Melodyne is in my VST menu, and its green (not greyed out, indicating problem)
Strangely, Melodyne will come up as a VST plugin inserted into the track, but does nothing. ie, it displays no audio, and I can't drag/drop audio into it or anything.
Right clicking on an audio clip only shows Edit, View, Clip Lock, Groove Clip Looping... but no Region FX
I have used Melodyne before, but it was a long time ago when it first came out.
Melodyne Singletrack stand-alone version seems to work perfectly fine.
@Noel-- got my reg exported (Melodyne shows up)... where should I send it?