Ralph is updated to 5.42. We are trying to increase stability in this release... We have turned off mouse rotation and sidechains temporarily. Please let us know if you can force a crash by playing with the 'show graphics' option from the boinc manager, or with your screensaver! Also, please let us know if you can get rosetta@home to crash, but the new ralph appears stable. You may need to suspend your work from rosetta@home to ensure a ralph workunit is processed. Please report bugs in this thread. Thanks!