One of my clients has this site http://madiranwines.com/
It has been updated to WP 3.0.2 but just displays a blank screen with Atahualpa activated.
Reinstalled WP 3.0.2 manually
Re-ftped ATA 3.6.4 manually
The same thing happens. With 2010 activated the site works ok. With ATA the site displays a blank screen in all browsers.
Any idea what's happening??