[xfce] Position of first opened window (not maximized)

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http://ubuntuforums.org – Xfce 4.10 on Ubuntu 12.04. With reference to apps running non-maximized, I notice that the first program I open opens in the top left corner of the screen. The next is aligned with the top right corner. Subsequent ones open at the bottom right and then the bottom left corner. Is there a way to ensure or force the first app to open in the top right corner instead of the top left corner? I'm asking because the icons on my desktop are on the left of the desktop. If I open Thunar, which takes up half the screen by default, it normally covers these icons. I then have to slide it horizontal (Hardware)