The file of this patent contains at least one drawing executed in color. Copies of this patent with color drawing(s) will be provided by the Patent and Trademark Office upon request and payment of the necessary fee.

FIG. 1 is a front view of a window for a computer display screen;

FIG. 2 is a front view of a second embodiment thereof;

FIG. 3 is a front view of a third embodiment thereof;

FIG. 4 is a front view of a fourth embodiment thereof;

FIG. 5 is a front view of a fifth embodiment thereof;

FIG. 6 is a front view of a sixth embodiment thereof;

FIG. 7 is a front view of a seventh embodiment thereof;

FIG. 8 is a front view of a eighth embodiment thereof;

FIG. 9 is a front view of a ninth embodiment thereof;

FIG. 10 is a front view of a tenth embodiment thereof;

FIG. 11 is a front view of an eleventh embodiment thereof; and,

FIG. 12 is a front view of a twelfth embodiment thereof.

The broken line drawing of the outline of a window in all figure views is for illustrative purposes only and forms no part of the claimed design.