At Sunday Time we spent a lot of time for testing of desktop environment in a fresh installation from SL50 and was slightly frustrated by crushing of Evolution during startup. In CentOS Evolution started without problems (but it has version 2.8.0-33, not 2.8.0-33.0.1). Further analisys shows dependency of this problem of last evolution- data-server timezone description changes. This bug may be reproduced by setting TZ environment variable, for example: TZ=Europe/Moscow evolution Some of bug-sensitive timezones: Russia -- Europe/Moscow, Europe/Volgograd, Asia/Irkutsk Indonesia -- Asia/Makassar, Asia/Ujung_Pandang Mongolia -- Asia/Ulaanbaatar, Asia/Ulan_Bator After looking to backtrace & source code debugging I found the root of evil -- into the last changes of data-server zoneinfo descriptions (evolution-data-server-1.8.0-updated-zoneinfo.patch) removed TZNAME tags from Australia/Perth.ics and Asia/Jerusalem.ics. As a consequence -- NULL pointer for TZ name string references, string comparison with NULL pointers an so on... Because, evolution-data-server is important infrastructure component not only for Evolution, but for some other GNOME components too, I think, this problem must be resolved. Given above, we have three ways for that: 1) quick&dirty -- setting up corresponding UTC-relative TZ (not exactly equivalent) or starting of evolution with --disable-eplugin option 2) orthodox -- downgrading of evolution-data-server package, or setting up TZNAME tags in Australia/Perth and Asia/Jerusalem timezones 3) hackers way -- source patching by single line of code (the patch is attached) Of course, further testing will be helpfull and, may be, escalating this problem to the upstream vendor will be reasonably. Apropos, Connie or/and Troy, which procedure was used for evolution- data-server package building? My rpmbuild on SL50 was finished with some error messages: ================================================== + aclocal configure.in:706: /usr/bin/m4: builtin `mkstemp' requested by frozen file is not supported autom4te: /usr/bin/m4 failed with exit status: 1 aclocal: autom4te failed with exit status: 1 ================================================== Seems like your package built by previous version of automake tool box. Package was rebuilded on SL50 only after removing `mkstemp' function checking directive in a line 706 of configure.in. --Oleg