A quick tip regarding aero and Windows7, if for some unknown reason Aero stops working and when you try and fix it, the message displayed talks about Mirror Drivers you may start pulling out your hair.
Let me explain Mirror Drivers, are display drivers installed when you usually install some sort of remote access software (like logmein in my case), these mirror drivers are what help you see things remotely. In the process of installing these drivers (which is done automatically) it can disable aero. If this is the case you just uninstall the driver and it restart your machine.
You can remove the drives by going to System/Device Manage from the control panel and expanding Display Drivers adapters.
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