I downloaded the trial version of CxMac, and it refused blankly to run, coming up with the application quit unexpectedly dialog box. This is on OS X 10.5.3.
Running in a shell revealed this:
richard-aspdens-macpro31:Applications rick$ CrossOver.app/Contents/MacOS/CrossOver 2008-06-06 21:44:36.262 CrossOver[4365:10b] Setting DYLD_FALLBACK_LIBRARY_PATH=/Applications/CrossOver.app/Contents/SharedSupport/X11/lib:/Users/rick/lib:/usr/local/lib:/lib:/usr/lib 2008-06-06 21:44:39.106 CrossOver[4365:10b] 6.2.1 Release Date: 18 December 2003 X Protocol Version 11, Revision 0, Release 6.8.2 Build Operating System: Mac OS X Apple Computer, Inc. Current Operating System: Darwin richard-aspdens-macpro31.local 9.3.0 Darwin Kernel Version 9.3.0: Fri May 23 00:49:16 PDT 2008; root:xnu-1228.5.18~1/RELEASE_I386 i386 Before reporting problems, check http://www.codeweavers.com/support/ to make sure that you have the latest version. Could not find keymapping file USA.keymapping. Reading keymap from the system. _XSERVTransmkdir: Owner of /tmp/.CrossOver should be set to root Loading GLX bundle glxCGL.bundle (using Apple's OpenGL) Display mode: Rootless Quartz -- Xplugin implementation PseudoramiX screen 0 added: 1920x1179 @ (0,21). PseudoramiX screen 0 placed at X11 coordinate (0,0). [DRI] screen 0 installation complete Screen 0 added: 1920x1179 @ (0,21) Screen 0 placed at X11 coordinate (0,0). Keyboard is TISInputSource, but has no Unicode key layout data Segmentation fault
I traced this back to my keyboard layout. I have a Microsoft Comfort Curve 2000 PC keyboard plugged in, which comes with it's own British English keyboard layout in the Microsoft Intellitype for Mac OS X. Selecting the Apple version of British English allowed CxMac to run perfectly well, albeit with my @ and " swapped, amongst other things.
I'd have put this through the support system or bug tracker, but the former isn't available to me as I haven't bought it yet, and the latter is closed for bug reports.
This shouldn't be a particularly hard one to reproduce - the software with the layouts is available at http://www.microsoft.com/hardware/ , and the drivers are a free download.