Thanks for the reply
1. Because my copy is distributed by SoldOut, the patch on this forum doesn't work. I have seen this mentioned on other forum threads although I am still confused whether the patch is already incorporated into the SoldOut version of the game or not.
2. I happened to find the thread that you have included after I posted this question so I did try it. Sadly that doesn't work either, not even after restarting the game.
Previously, I uninstalled the game and re-installed it, the problem went away for about 5 or 6 games but then returned. I have also tried basic things such as building the bronze smelter and then waiting before building the weaponsmith but no go there either.
I have started playing iron age now and so far so good there, but obviously it is rather disappointing not to be able to play bronze age.
[This message has been edited by qanrs (edited 06-05-2012 @ 09:21 AM).]