Reply #1 Top

Mine does this to sometimes, usually it's only one 'block'  however sometimes it's the whole thing. 

Reply #2 Top

I got a square that went dark but shows the fog of war as the ground skin when you zoom in. It started happening as soon as a caravan created it's first road and then periodically occurs after. Moving a unit seems to correct the problem.

Reply #3 Top

This happens to me independent of caravans... it seems to be completely random, actually... at least so far I've seen no obvious cause.

Reply #4 Top

Quoting Sherekhaan, reply 2
I got a square that went dark but shows the fog of war as the ground skin when you zoom in. It started happening as soon as a caravan created it's first road and then periodically occurs after. Moving a unit seems to correct the problem.
End of Sherekhaan's quote

This is exactly what is happening with me, same solution for fixing the problem as well.  However I didn't have a caravan before this problem started occurring though.

Reply #5 Top

i have same problem but doesnt seem to depend on caravan or unit... the "clothmap" is always dark, missing the cloth texctures

using an ATI 5850 toxic and windows vista