For those who use Wordpress & pop up domination plugin and haven't upgraded to wp3.3 yet, just a word of warning.
The new wordpress 3.3 has been available for about a month. I normally wait a little while before upgrading to give the plugin developers a chance to catch up.
I upgraded this morning across all of my wp sites, however, I found that all sites that had pop up domination plugin installed conflicted with WP3.3.
The problem is whilst you can login to the admin panel it only displays a blank page. It looked as if the website itself was unaffected but obviously not having access to admin panel has it obvious issues.
I found that after I deleted the popup domination plugin via ftp, the dashboard was fully accessible again.
Hope that helps a few of you