wierd, i have a mac and it works for me. Did you download blockland V15 from http://www2.blockland.us/
Because of certain problems, you can't have a single application that runs on both 10.4.0 and 10.6.0Either upgrade your operating system to Leopard or SnowLeopard, or you can't play.
THIS.You can't play the game unless you upgrade.Nothing you can do about it.