I installed all those plugins along with uComment and still couldn’t find the error.
While debbugging, i discovered a couple of small bugs that where throwing PHP Notices on WordPress.
Everything was corrected and the new version is available for download.
Please try it and tell me if the problem continues.
If it does, try to set WP_DEBUG to “true” on wp-config.php and tell me what errors does it show.
It’s very diffcult to test a plugin in every possible environment.
What is your wordpress version?
Do you have a heavily customized theme?
Do you have a lot of installed plugins?
I would like to help but i need you to give me a little bit more information.