*I* want many things that are no concern of yours. Please, refrain from bringing up what *I* want and read what the crash handler tells you when the game stops. You say your computer has 4 GB of memory. That is 4 billion bytes. Assuming you are running 32 bit operating system with 32 bit pointers, this means that there rougly 1 billion reasons (memory pointers) that could cause 0 A.D. to try to read from the forbidden location 0x00000008 that is reported in crash handler. For anyone to be able to figure out why the crash actually happens, crash handler tells you that you should report error on TRAC and attach error logs, namely 'crashlog.txt' and one other file. You opted to ask help on forums, which is fine, but you still need to supply the relevant information. There exists similar topic at: http://www.wildfiregames.com/forum/index.php?showtopic=15467 where historic_bruno has explained this in some detail, also providing exact location of log files on Windows systems, + @niektb link has same information and more.