Do you have various tabs open in Safari? Perhaps might be worth closing them to see if that might make a difference. Perhaps even clearing Safari's data.
For those 26 mins - there's a good chance that I used multiple tabs but then closed Safari on exit. I'd hate it if I couldn't use more than 1 tab at a time with 9.3.1. Will clear the cache/history & see if it makes a diff.
Thanks a lot for responding.