Форуми / Cotonti / Support / PM Title

There's only two things I can think of right now. First you should try clearing Internal Cache and Disk Cache (see Admin -> Other) via Purge all. If that doesn't work you should check if you have any plugin installed which hooks into 'pm.main' (see plugin details page via Admin->Plugins, its under Parts). If you find any, try pausing that plugin.