Set up Wizard Blank Screen

Hi,

Reasonably seasoned BPS free user – just upgraded to Pro.

De-activated and removed free version. Uploaded PRO. Activated. Click link for set-up wizard and I just get a blank screen area (wordpress admin OK but no central content where BPS screens / menus would normally display).

Tried de-activating and reactivating.

Please advise.

WordPress 3.8.1 | PHP 5.2

Thanks,

Nawaz