Hello Alex, regarding this topic, look at these two threads:
http://groups.google.com/group/sage-support/browse_thread/thread/93973810618b2aa3/49fe80a730cf9137 http://groups.google.com/group/sage-support/browse_thread/thread/e3d6d735c7cc1507/401d424df1e6f5e9 Georg -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org