[Chris]

It seems to me that if you're going to go with non-standard window behavior, there should be a very good reason, and I don't see it here.

Also, (and I should send this as feedback) the current implementation is inconsistent. Showing/hiding columns (due/start dates, for example) doesn't change the window size, it resizes the existing columns (Name). Why does manually resizing columns change the window size, but hiding/showing columns preserve window size?