“Add Custom Field” not working

Hi,

Can anyone tell me why “Add Custom Field” doesn’t seem to be working?

This was my workflow:
– Selected Custom field name from the predefined list
– Entered a value
– Clicked “Add Custom Field”

Then: nothing. The list of custom fields is not updated. Clicking “Update Post” is the only way to update the list.

Any ideas? Javascript error?
I’m using Firefox 3.5

Many thanks!

Kind regards,
Martin