search for: ath_mutex_t

Hi, I installed Assassin's Creed II but Ubisoft Game Launcher crash when is launched. The error message in the console is this : > Game Launcher\UbisoftGameLauncher.exe: ath.c?:193?:?_gcry_ath_mutex_lock: L'assertion ??*lock == ((ath_mutex_t) 0)?? failed. I search in bugzilla if a bug still exist (or existed) and i found this patch for the bug #25504: http://bugs.winehq.org/attachment.cgi?id=34090 It's the same bug (same error message) but the IGL crash always. Thanks for your help