@aviario
I've tested the GridCreate2 method with both true and false param.
I've also tested the PropSetHeight calling it before and after
GridCreate2 but i've not been able to get the errors.
I can suggest to:
1) initialize the grid
2) initialize and add the grid columns
3) fill the grid
4) create the grid
You can then:
a) test if a row exists
b) set the height of the row
I'll be glad to have a look at your code if you post it or send by email.