Linux Mint 14 - steam.sh의 Segfault(Steam을 시작할 수 없음)

Steam을 시작하려고 할 때의 출력은 다음과 같습니다.

tetra@nick-Inspiron ~ $ steam
Running Steam on linuxmint 14 64-bit
STEAM_RUNTIME is enabled automatically
Installing breakpad exception handler for appid(steam)/version(1373503443_client)
Gen6+ requires Kernel 3.6 or later.
steam: ../../../../../src/mesa/main/context.c:1499: _mesa_make_current: Assertion `newCtx->Version > 0' failed.
[2013-07-13 21:15:04] Startup - updater built Apr 30 2013 10:04:24
[2013-07-13 21:15:04] Opted in to client beta 'publicbeta' via beta file
/home/tetra/.local/share/Steam/steam.sh: line 704:  4342 Segmentation fault      (core dumped) $STEAM_DEBUGGER "$STEAMROOT/$PLATFORM/$STEAMEXE" "$@"
Installing bootstrap /home/tetra/.local/share/Steam/bootstrap.tar.xz
Running Steam on linuxmint 14 64-bit
STEAM_RUNTIME has been set by the user to: /home/tetra/.local/share/Steam/ubuntu12_32/steam-runtime
Installing breakpad exception handler for appid(steam)/version(1373503443_client)
Gen6+ requires Kernel 3.6 or later.
steam: ../../../../../src/mesa/main/context.c:1499: _mesa_make_current: Assertion `newCtx->Version > 0' failed.
[2013-07-13 21:15:05] Startup - updater built Apr 30 2013 10:04:24
[2013-07-13 21:15:05] Opted in to client beta 'publicbeta' via beta file
/home/tetra/.local/share/Steam/steam.sh: line 704:  4430 Segmentation fault      (core dumped) $STEAM_DEBUGGER "$STEAMROOT/$PLATFORM/$STEAMEXE" "$@"

왜 스팀을 시작할 수 없는지 이해가 안 됩니다. 패키지를 다시 설치했습니다.