Moving , Editing Topics Error.

[T3G4Life]

when i edit a title or move a topic it just takes me to a blank page. Any idea why?

[Dismounted]

<a href="http://www.vbulletin.com/docs/html/blank_pages" target="_blank">Blank or 'White' Pages</a>

[T3G4Life]

Im using Vbulletin SEO. its not the same errors as in those pages :\

[Opserty]

Either disable vBSeo and see if you board functions correctly. Else ask on the vBSeo site/thread for assistance.