Display Panel of a Programmed Computer System with a Graphical User Interface

FIG. 1 is a front view of a display panel of a programmed computer system with a graphical user interface, showing a first embodiment of the new design;

FIG. 2 is a second embodiment thereof; and,

FIG. 3 is a third embodiment thereof.

The outermost broken line rectangle illustrates a display screen and forms no part of the claimed design. The remaining broken lines illustrate portions of the graphical user interface that form no part of the claimed design. The stippling and diagonal lines represent contrasting surface ornamentation and do form part of the claimed design.