id summary reporter owner description type status component version resolution keywords cc guest host 11613 Guest Fedora vanished unexpectedly! Edward Yang "I had several cases of this bizarre situation. Though it cannot be reproduced reliably, but the crashes have something in common: 1. Usually this is a fresh restart of guest Fedora. 2. At the login screen, I type in password and click the Session dropdown list. 3. Click on GNOME. 4. The whole guest Window vanishes." defect closed 3D support VirtualBox 4.2.10 fixed Linux Mac OS X