That all sounds like overheating for some reason, and generally unrelated to evolution.
Tomas, let's try to debug this properly: please attach .xsession-errors from a session reproducing the issue. Additionally, since we're looking at a possible crash, please enable Apport as described here: https://wiki.ubuntu.com/Apport#How_to_enable_apport -- to see if it will catch the crash and offer debugging information. Since following these steps will automatically open a new bug report, I'm closing this one as Invalid. David, please use 'ubuntu-bug linux' to file a new bug for your system, preferably after reproducing the issue. This will open a new bug report against the kernel (which should include lots of information, which won't be a loss if the bug needs to be reassigned). Thanks! ** Changed in: evolution (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/818505 Title: EVOLUTION every day w/o reason use 150% of my computer = all freeze after 4 mins EVOL. colapse. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/evolution/+bug/818505/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs