Well, I went ahead and did some testing with your layout. I'm not able to duplicate the master window in first image at all using your script. The master window looks like the bottom image, it goes from edge to edge of the screen. Is that a viewport or something?

Name: hkn1.png Views: 915 Size: 449.1 KB




The only way I can get the master screen to look like that is by restricting the window size and position, which also makes all the slave windows swapped to the master position use the same layout.

Name: hkn2.png Views: 710 Size: 389.1 KB Name: hkn3.png Views: 690 Size: 404.0 KB

Code:
//----------------------------------------------------------
// 	WoW RESIZE AND POSITION
//----------------------------------------------------------
//*
<Command ResizeAndPosition>
	<SendPC Local>
		<SendWinM %1%>
			<SetWinRect 130 360 1560 720>
				<SetWinRegion none>
					<SetAffinity all>
		<SendWinM %2%>
			<SetWinRect 0 0 480 360>
				<SetWinRegion none>
					<SetAffinity all>
		<SendWinM %3%>
			<SetWinRect 480 0 480 360>
				<SetWinRegion none>
					<SetAffinity all>
		<SendWinM %4%>
			<SetWinRect 960 0 480 360>
				<SetWinRegion none>
					<SetAffinity all>
		<SendWinM %5%>
			<SetWinRect 1440 0 480 360>
				<SetWinRegion none>
					<SetAffinity all>
If your master is using a viewport or something that is adding that border along the sides of the window, then your slaves need to use the same.

I also have every window using resolution 1920*1080 in WoW. There is no distortion in any of my windows upon swapping using the above script with the same resolution.

Here's a couple threads on aspect ratio that I found in the search.

http://www.dual-boxing.com/threads/2...ip-script-help
http://www.dual-boxing.com/threads/18939-Aspect-Ratio