I wonder if anyone has this issue. When I resize the main Cubase window is produces clicking and crackles. This happenes for example when I grab the left side of the main Cubase window and drag it to stretch it out further to the left. I have found that by switching off Aero (done by switching from the Aero desktop mode to the Windows 7 basic - high contrast mode) that the noise stops.
This is important as you might be doing a major recording and resize your Cubase window, possibly introducing unwanted noise into your recording. I have not verified if this audible noise is indeed passed onto recorded tracks or not.