Well, looks like my ISP has told me they can no longer support my web site - because Drupal is too expensive in terms of mysql resource usages. They have put in limits to the amount of time queries take, and while I can access my site and navigate, looking at the administration page which displays logs now fails, and there are also intermittent failures when adding/updating nodes.
What fails 100% of time time is the log display - these error messages are thrown up - now, this is a new change at my Hosting Provider, so not sure if other packages are also impacted, but my small, low traffic site (< 1000 page views per day) is causing Drupal mysql queries to take too long - is this a Drupal problem? Or are the limits at my provider too low? In any case, since this is a hobby site, I'll try to look for another provider, http://www.hostmonster.com/ looks good, if anyone has Drupal running correctly on it, let me know.
Current provider errors: