Hey, try using BF3 Borderless and see if its helps at all, works wonders for me, runs the game in a full-screen border.
http://forums.electronicarts.co.uk/battlefield-3/1452391-realmwares-bf3-tools-bf3-settings-editor-bf3-borderless-battlelog-standalone.html
The settings editor and Battlelog standalone are cool as well, but the most important tool here is the BF3 Borderless
Tell us how it goes
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