reprapdiscount lcd + ramps + marlin (1 reply)

I finally done it. I started building my own printer.
So I ordedred a bunch of stuf, put it all together, experimented with all the posibilities, and so far almost everyrhing works splenditly.

But..
I have a ramps 1.4 board, mega 2560 processor board and a reprapdiscount smart lcd display.
The display is giving me a headache.
Sure, it gives me all the necessary information, very nice.
But it keeps switching between the menu list and the main screen every second.
First I thought something was wrong with the encoder or the connections between the ramps board and the encoder. Or maybe wrong pin-setup in pins.h ( I am using Marlin v1 firmware, btw)
I think I have tried everything. I even desoldered the encoder, cut the wires between the ramps board and the display-print, tried all the settings I could find, but it keeps switching like a mad man.
Funny thing is, that when I use repetier, the switching stops. The encoder doesn't work very well, only in one direction, no button action, so something is not right there either.
I'd rather use marlin actually. It seems nicer.
Can anyone help?

Rien.