Fading LCD display - '98 E320

[Flop]

Has anyone else had problems with parts of the LCD for the climate control fading out? It started with the driver side temperature, where I lost one of the 7 lines that make up the numerical display of the temperature. The other day, I lost one of the triangles/ramps for fan speed. Today, I lost another triangle or two. Now it's a problem because I can't tell what speed the fan is on. Am I looking at an expensive replacement part or could this be fixed somehow - perhaps something loose behind the display? Probably just wishful thinking on my part. Any suggestions are greatly appreciated.

This is a '98 E320 wagon, by the way.

Thanks.