Dear Colleagues, Has anyone experienced difficulty in installing CCP4MG (2.4.1) with Windows7? The symptoms when I try to use it, after an apparently ok installation, are:- The tool bar remains as feint text but still allows a drop down menu. Then trying to open a coordinate file (either from a folder or via a download) it leads to the message appearing :- python.exe has stopped working. I would be grateful for any insights on this difficulty. Thank you, Yours sincerely, John Professor John R Helliwell DSc