Hi, Yesterday I observed a very serious bug in Athena that will, I think, only effect certain linux users. The bug is a race condition that makes Athena unresponsive and indefinately consumes 100% of the CPU. That's a bad thing, indeed! The bug is triggered by passing the mouse over an item in the groups list, causing it to redisplay in a larger blue font. On a machine where the larger font does not exist, perl/Tk enters into the race condition. I have documented this and a work-around as question 8 of this FAQ page: http://cars9.uchicago.edu/iffwiki/FAQ/HoraeQuestions I believe that Windows and Mac users will not be effected. If you install Athena onto a linux machine and see this behavior, please see the FAQ. A permanent fix will be included in the next release. B -- Bruce Ravel ---------------------------------------------- bravel@anl.gov Molecular Environmental Science Group, Building 203, Room E-165 MRCAT, Sector 10, Advanced Photon Source, Building 433, Room B007 Argonne National Laboratory phone and voice mail: (1) 630 252 5033 Argonne IL 60439, USA fax: (1) 630 252 9793 My homepage: http://cars9.uchicago.edu/~ravel EXAFS software: http://cars9.uchicago.edu/~ravel/software/exafs/