Best Answer Rob , 12 February 2013 - 09:43 PM
While you may not have added new plugins, sometimes they just suddenly cause problems.
Deactivate all plugins except for Akismet, any cache plugin and both PageLines Customize and PageLines Sections. Make a list of the ones deactivated so later, you can restart them.
If the problem goes away, restart the plugins one at a time and check to see if the problem recurs. When it does, deactivate it again and find a replacement.Go to the full post