Have you tried:
– checking through Troubleshooting WordPress 3.1 – Master List
– 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 Twenty Ten theme to rule out any theme-specific problems.
Deactivating the plugins and reactivating one by one worked– I found the culprit! Huge thanks!
This same problem has just started happening to me also, after updating to 3.1 a few weeks ago. All 3 of my sites are affected, and I use 2 different themes and different plugins. Can’t edit in the visual tab, so frustrating! Also get the error message – “Out of Memory on Line: 1” when using IE8. Sometimes when I click the Visual tab, all my content turns white.
Thanks
same troubles as above, fyi. will try reactivating plugins.
How can this thread be marked resolved when it was NOT resolved for everyone?
For me, adding this to the wp-config.php worked like a charm:
define(‘CONCATENATE_SCRIPTS’, false );
I was having the same problem in 3.1.1 and this also worked for me
adding this to the wp-config.php worked like a charm:
define(‘CONCATENATE_SCRIPTS’, false );
Thanks now just need to remember to do this when I upgrade that is if the issue is not resolved by wordpress..
