Perhaps we should change the african+asian landblock with this :
http://forums.rometotalrealism.org/i...howtopic=20850
It also includes a port fix for Isca and Cyrene, which have the same problem as Aleria had (i.e. no landings or trade routes possible due to cliffs, as I found out to my dismay winter 273 BC). The latest M&N mod version includes a fix for Aleria, but not for Isca and Cyrene.
I will try it out and see what happens. In theory this is all savegame compatible. All you have to is to remove the map.rwm files again and reload.
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