please post a link to your site with some information on what version of wp you are using and what theme is giving this error etc.
Sadish
I am having this problem too. I am using WP v2.3, Mac OS X v10.4.11 and Firefox v2.0.0.11. I do not have a firewall active. My cookies were all cleared in hopes that it would clear up this problem.
It may or may not be related to another problem I was having (that started at the same time.) Any user who tries to log in to my blog gets this error:
* “ERROR: WordPress requires Cookies but your browser does not support them or they are blocked.”
My current theme is Cutline 3 Column which is widget-aware. When I installed another widget aware theme everything seemed to work fine again, but this theme keeps causing problems. I really don’t want to reinstall the theme because of the amount of work I have done customizing it (lesson learned.)
Thanks for any help you can give me.