Quoting Wayne Boucher <[log in to unmask]>: > Now I think for GL we were using a version of Mesa 5.0 that was > already installed on the machine. (Although it's possible another GL was > being picked up, I never really know.) On LINUX at least lsof is your friend in this situation lsof -p <pid_of_analysis> where pid_of_analysis is the proces id of the main python shell will give you all the libraries actually being used by the process. -- Dr. Brian O. Smith ----------------- B Smith 'at' bio gla ac uk Division of Biochemistry & Molecular Biology, IBLS University of Glasgow, Glasgow G12 8QQ, UK.