Change of sig max size.

[poggy]

From 575x100 to 400x200. As I've just said on the Test Area IV thread. I find hard to do sigs in the size limits as it is. But by knocking off 175 in the length and adding 100 to the height would really open up new horizons to the creative members here.

So my suggestion is...

Can we have a new signature size of 400x200 please.