Just released the version 3.2.4 to try to solve a problem introduced some week ago. The problem, which seems to affect only few installations, was due to a small change in the plugin to make it more compatible with another plugin, the domain mapping for multi site.
Version 3.2.4 had been adjusted in many points to fix the issue and keep the compatibility with that plugin (probably not very diffused…) but the corrections were mandatory because the original code was not completely conformant with the WordPress guidelines.
Hope, really, that this release does not create other issues (the line of code changed are consistent). Please, report any bad behavior to me so I can check and fix it ASAP.