RESOLVED: Can't make ANY changes in the Advanced Settings module

Everytime I try to make ANY change to my PBX, i get the following error:

Ajax Web ERROR: When saving key AS_DISPLAY_READONLY_SETTINGS: parsererror

the AS_DISPLAY_SETTINGS is obviously changed to match whatever settings I’m trying to make…

Any one have any ideas?

Linux Distribution: (Redhat CentOS release 5.5 (Final))
FreePBX version: (2.9.0)

Thanks a bunch

Resolution: Changed to Google Chrome, works fine now, THANKS!!

Try a different browser? Say chrome?

In my experience chrome was the problem. In every other browser it worked fine except in Chrome. After updating to Freepbx 2.10.0.8 it started working in chrome!