Error: personalization in webparts

Nov 26 2007 5:44 AM

"The specified display mode is currently disabled on this page. Make sure personalization is enabled for the current user. Parameter name: value"

this is the error message i get when i am trying to change the dissplay mode of the webpartmanager to 'design' display mode.

personalization for the web page is set to 'True'. but still i get the same error. Please help me solve this problem.