Have you tried:
– deactivating all plugins to see if this resolves the problem? If this works, re-activate the plugins one by one until you find the problematic plugin(s).
– switching to the default theme to rule out any theme-specific problems?
– resetting the plugins folder by FTP or phpMyAdmin? Sometimes, an apparently inactive plugin can still cause problems.
– re-uploading the wp-admin and wp-includes folders from a fresh download of WordPress?
– increasing your available memory?
Thank you esmi, re-uploading the wp-admin and wp-includes folders from a fresh download of WordPress did the job.
But guess what, I had to do it on all my 16 blogs!
And now I am curious to know what might have caused the problem in the very first place???
Have you checked your pages for any signs of hacking?
You would need to examine your pages’ source code for signs of any “odd” links – ones that you know you haven’t added. Sometimes, a misbehaving Dashboard can be the first sign of a hack. Other times, it’s simply that one or 2 files have been corrupted on the server – something that does happen from time to time.
No esmi, I couldn’t fnd any signs of hacking like my pages getting distorted by “adding” or “deleting” anything.
You said: “Other times, it’s simply that one or 2 files have been corrupted on the server – something that does happen from time to time.”
But why does it happen from time to time?
