*** For details on how to be removed from this list visit the *** *** CCP4 home page http://www.dl.ac.uk/CCP/CCP4/main.html *** Can I ask people not to send messages to ccp4bb (or anwhere else) as attachements. This seems to be becoming more common. Recent examples are from Yu Wai Chen & Demetres D. Leonidas It makes them hard to read Phil