OOB Icon Doesn't Display

I've followed all the steps to put icons in my OOB Xap package, but no matter what I do, the default Silverlight OOB icon shows up in the installer and on the desktop icon. What am I doing wrong?

I followed this article as closely as I could:

http://msdn.microsoft.com/en-us/library/system.windows.outofbrowsersettings.icons(v=vs.95).aspx

Here is the relevant part of my app.manifest:

<OutOfBrowserSettings.Icons><Icon Size="16,16">Icons/WindowsIcons/XivicX_16x16.png</Icon><Icon Size="32,32">Icons/WindowsIcons/XivicX_32x32.png</Icon><Icon Size="48,48">Icons/WindowsIcons/XivicX_48x48.png</Icon><Icon Size="128,128">Icons/WindowsIcons/XivicX_128x128.png</Icon></OutOfBrowserSettings.Icons>

Icons must be .png files

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Have added to the project and that have Build Actionvalues ofContent

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The .png files must be of the dimensions indicated in the Icon.Sizeproperty values

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What have I done wrong?