Thanks, Bev. I just went through all that. Reverting to default theme had no effect, and then I went through the plugins one at a time.
The only difference I found was when I DE-activated the Slideshow Gallery plugin, I got this error message. (Calendar still misbehaved, though)
Warning: mysql_real_escape_string(): No such file or directory in /homepages/1/d249002805/htdocs/website/wordpress/wp-content/plugins/spiffy-calendar/spiffy-calendar.php on line 2248
Warning: mysql_real_escape_string(): A link to the server could not be established in /homepages/1/d249002805/htdocs/website/wordpress/wp-content/plugins/spiffy-calendar/spiffy-calendar.php on line 2248
Could this be a clue?
DO you think reverting to an earlier version of your plugin or the Slideshow Plugin might help?
Hate to abandon Spiffy Calendar!
thanks
N