Hi, I just upgraded my two PCs to legal Windows 7. Both are the same Dell PC. One works flawlessly (Primary). Nevertheless, the secondary machine darkens the screen everytime I swap from the primary. It displays the "entering the energy saving mode" warning and in a second, it wakens up and works normally. In other words, when the mouse jumps from primary to second, its screen darkens for a few seconds and reactivates again. I installed the dedicated driver for this ca
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