>>Recently, whilst most response times are good, it seems that invoking the 'View Entire Thread' option takes a longggggg time to complete. Anyonev else seeing this?
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>There was a corruption in an index on SQL Server. I had to reindex the entire set of index on the main table to rectify the situation.

Thx. Made a huge difference. Interestingly, IIRC, before the fix it would still get there in the end but maybe not actually show all messages in the thread.