Hello, I run with FreeBSD 9-PRERELEASE #3 fully compiled with clang and I also build ports with clangwhen possible. For now, everything compiled excepted devel/icu (compiles but does not perform tests, so I built it with the old gcc), but Xorg seems to have problems. 1. x11-servers/xorg-server does not compile with GCC 4.2, option not recognized (I'll tell you what option later) 2. When built with clang, no error, no problem, but at start, a blank screen made of gray and white pixels mixed. Return to tty is impossible and I must Ctrl+Alt+Suppr to reboot the system properly. I had no problem with FreeBSD 9-PRERELEASE #2 fully compiled with GCC 4.2, Xorg too. My graphic card is an intel i915, worked with the VESA driver, 1024x768 resolution. I'll try next week if compiling Xorg with GCC 4.2 make it running correctly, and if not, rebuilding the entire world with GCC 4.2. Any idea? Maybe an old configuration, some old files somewhere in /usr/local? PS: the /etc/X11/xorg.conf is the same that worked for the previous installation of Xorg.