The Pro white is a matte (called Pure White) whereas the old d/c'd White was a nice frost. The White which appears currently on the Pro site which is just called "White" is the old d/c'd one, but I guess they have some still lying around, because I've seen it in a Pro store recently. The site also had a couple of the old mattes on there before, but they're gone now. Anyway, long way of saying, one is matte and one is frost.