To whom it may concern, I just installed cygwin/X on a freshly installed Windows 7 Professional (64bit). When trying to start XWin Server, it crashes with signal 11 (Segmentation fault) My installation is as follows: Release: 1.15.0.0 Package: version 1.15.0-2 built 2014-01-11 XWin was started with the following command-line: X :0 -multiwindow Please find attached the XWin.0.log. Kind regards Ralf Oltmanns Systems Adminstrator financial.com AG Munich Head Office/Hauptsitz München: Georg-Muche-Straße 3 | 80807 Munich | Germany | Tel. +49 89 318528-0 | Google Maps: http://goo.gl/maps/UHwj9 Frankfurt Branch Office/Niederlassung Frankfurt: Messeturm | Friedrich-Ebert-Anlage 49 | 60327 Frankfurt am Main | Germany | Google Maps: http://goo.gl/maps/oSGjR Management Board/Vorstand: Dr. Steffen Boehnert | Dr. Alexis Eisenhofer | Dr. Yann Samson Supervisory Board/Aufsichtsrat: Rolf Richter (Chairman/Vorsitzender) Register Court/Handelsregister: Munich – HRB 128972 | Sales Tax ID Number/St.Nr.: DE205370553