Earlier this week I had a lot of traffic to my blog after it was linked to from a newspaper's home page.
Since then traffic has fallen down towards normal levels but I have a problem. If I'm working on a post and click 'Save' or 'Publish', or the post autosaves, my database crashes.
Restarting the database makes the system usable again and I can usually get one or two saves or publishes out of it before it crashes again.
Obviously this has made my site near-unusable. Can anyone advise what problem I might have? I haven't changed any plugins or anything recently, although I do have WP-SuperCache installed and I did use the 'lockdown' facility for a brief time while traffic to the site was especially high, before turning it off agin.