WordPress SEO version:18.104.22.168
I did this: Installed WordPress SEO to our test site (which is WP 3.1 on Zencart; our live site is WP 3.4 on Zencart, using the WOZ theme), following the directions on the WordPress SEO pages. I then went to the WordPress admin panels, activated the plugin, and went to its settings.
Having run into some issues, I disabled all other plugins (but can't see a way to get to the default WordPress theme from the WOZ theme) and this doesn't make a difference to the problems.
Using the test site requires a HOSTS file edit.
I expected the plugin to do this: Show its settings so I could explore it.
Instead it did this: Many of the WordPress SEO functions don't appear, and Quick Edit of posts doesn't work. For example, in the Titles and Metas settings, the tabs appear but are empty.
In the Posts list, Quick Edit is unresponsive, Edit launches a post slowly, and the WordPress SEO section header appears, but with no contents. The down arrow appears on the right but is unresponsive.
Disabling the WordPress SEO plugin immediately re-activates Quick Edit.
Additionally, the test site seems slower with the WordPress SEO plugin activated; the WordPress posting functions are definitely slower.
I'm wondering if there is an issue because of the way that WordPress on Zencart moves the WordPress folders up from the root? I've run into this before with media players.