Sanwa Gemini 2 question

[Miked]

Hi Just a quick question. I am fitting a Second Hand Sanwa Gemini set to a friends R/C car, all set up and working OK, my question is about the display.
When I switch on what ever menu I'm in the menu area on the display blinks on and off (I assume that this is to let you know the menu you are in) Is there any way of stopping this blinking once you have made any adjustments?
Just a bit off putting.