Thanks Peter,
I think it was the Work Area Bar but I din’t get your message till after I uninstalled and reinstalled PP and AE and did a lot of experimenting and deduction the finally worked it out accidentally just before receiving your message… I somehow got the area above the timeline to be greyed out then it rendered fine (don’t know why it disappeared before).
At least you’ve explained it now so I know what I did in case I do it again.
Phew. Problem solved. Back to the grind…
Glo 🙂