Those who use SSL logins with 2.5 will want to see http://trac.ww.wp.xz.cn/ticket/7558. I tracked the problem to a convoluted javascript security warning. In short, the login redirect didn’t properly restore the URL to http after going to the dashboard. This broke the tinyMCE pre-init sequence, forcing Javascript to throw an “I’m not doing that” security warning, on the grounds that it wasn’t safe to call outer functions from a secured https state. The fix is in the ticket. This is for 2.5 ONLY– 2.5.1 fixed this problem.
fixed it. see ticket #7558 in the trac database.
http://trac.ww.wp.xz.cn/ticket/7558
Here’s what you can do in wp-login.php (2.5)
Change line 392 to the following:
<input type="hidden" name="redirect_to" value="<?php echo get_bloginfo('home'); ?>" />