big prb after installing ML on my 5Dmrk2, screen is blinking !!

[keri]

hello everyone,

since I updated my mark2 with the latest ML  (v.2.3), my LCD screen seems to be burnt !! the screen is blinking constantly and seems to have like a big white spot on it... help ! I have it constantly (Livewiew mode, menu mode, play mode... still here...)
what I tried to fix it :

uninstalled ML
re-installed Canon firmware (v.2.1.2)

nothing has changed....

[a1ex]

If you take the battery out, this kind of flickering is normal and will disappear after a while.