Rows in post table = 39580, rows in searchcore table = 5376 .... hmmm odd. I will rebuild the search index and check after. Thanks for that info Lynne
--------------- Added [DATE]1430534415[/DATE] at [TIME]1430534415[/TIME] ---------------
After emptying the search index and rebuilding it, it appears to be working properly now

I'm wondering if something interrupted the rebuild the last time I tried.
Asked my members to perform exhaustive searches, if nobody reports any issues then I can cross this off my list!