Do you have a problem with condensation forming on the windows at all? I have single pane windows, and when it's cold outside and when condensation forms on the windows inside, it also forms on the interior window frames. That looks like a good candidate for what's causing the bumps (if in fact it is crystalized glue from moisture)
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Bill
2011 Dodge Ram 1500 HEMI Quad Cab
2011 Jay Flight 26BH
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