The case is very rigid. It is made from Magnesium Alloy which is black with a roughened finish and is very pleasant to touch and affords good grip while carrying. All joints on the case meet flush with no gaps and joints do not have relative movement at all no matter how the notebook is lifted. Every door and compartment, even the optical drive sits securely in its location and with no play whatsoever. There are no creaks or flex when lifted by the corners with the screen open. It is impossible to twist the machine using reasonable force. No part of the machine could be made to flex when pressed, not even very thin sections of the case such as the base of the battery compartment with battery removed or the frame of the keyboard.
Pressing on the back of the display did not produce any rippling at all although it did sink a few millimeters. The screen however does twist if one corner is pushed and the other pulled moderately although this also did not produce rippling on the display. However, the display does appear to be the part most vulnerable to physical damage when open. When closed the display is secured by two plastic clips opened with a single central release. When closed the display is well secured and well protected against twisting to which is vulnerable when open. There is no hinge wobble and the resistance to opening and closing is light although sufficient to keep the display from moving on its own.
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