Charter Spectrum → [CATV] Changing channel guide color Charter (Cisco Explorer 4650HDC)

Does anyone know how to change the channel guide background color on the old Cisco 4650s? We have 5 of the boxes in the house and one of them has pink as a background color while the others are blue or black. We can't seem to locate a setting to change this anywhere.

Hit menu twice, yellow triangle A for more settings, scroll down to color scheme and pick one.

Thanks!