js error on post editing page

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I’m getting a Javascript error on the wp-admin/post.php page
which prevents me from adding tags/editing the post’s link.. pretty much everything with JS… anyway, the error is:

> Error: d.delegate is not a function
> Source File:
> http://www.mysite.com/wp-admin/load-scripts.php?c=1&load=hoverIntent,common,jquery-color,schedule,wp-ajax-response,autosave,wp-lists,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,jquery-ui-resizable,jquery-query,admin-comments,suggest,jquery-ui-sortable,postbox,post,word-count,thickbox,media-upload&ver=c1c854f5d9062306d43d7331055686c9
> Line: 42

UPDATE
Only solution that seemed to work was downgrading the WordPress website to 3.0.5
I’m not sure why is this happening, but after 5 hours of debugging – I don’t care

5 s
5

I’d suggest disabling script concatenation and/or compression to see if that helps. You can do this by adding the following to the wp-config.php file:

define( 'CONCATENATE_SCRIPTS', false );
define( 'COMPRESS_SCRIPTS', false );

And maybe even script debugging to..

define( 'SCRIPT_DEBUG', true );

Are you using any caching plugins?

EDIT:
The most common reason for seeing that message seems to be running an older version of jQuery, ie. anything lower than 1.4.2 … do you have any plugins that load jQuery?

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