Ice grow problem Options

[Lin Kuei Ominae]

I played a bit around with Finalsun and tried to make a small snow map.
The problem is that the ice doesn't grow as expected. Beside of a small area, the ice doesn't grow anywhere else.
The pic shows the area in which ice grows.
at the start:
a bit later:
It is surrounded by Ice 01 open water cells, but it doesn't grow farther.

I also copied the small section into an Ice 02 and Ice 03 field, but the same result.
Ice 02
start:
later:
Ice 03
start:
later:

Does anyone has an idea why this happens?

Another question
Is it possible to make Ice melt during the day and grow in night? (while day-night-loop)

This post has been edited by Lin Kuei Ominae: May 24 2008, 07:34 AM

[Aro]

1) Your ice shores must stick out from the rest of the shores, like a peninsular.
2) Your ice shores are complicated, make them more simple with little curves.
3) Use the picture I've posted above for reference, try to make it look similar to that.
If you take a look at Westwood maps, maps of which ice grows on has both lots of space and simple shores. I don't understand, this works perfectly fine for me, I can't see why you're having problems.