Jenny100, the last fix, in difference from the first one, has nothing to do with (especially) Russian versions of the games, - it is a universal solution!
As for how it works - as far as I know, the reason for the flicker is the incompatibility of (some) Kheops games with later (in relation to their release dates) versions of DirectX 9.0c. Kheops blamed Microsoft, and Microsoft blamed Kheops, but somehow neither had done anything about it.
And the fix is just an 'alternative' version of DirectX 9 libraries made for Wine
project in order to run Windows games in other OSes like Linux or ReactOS. Luckily for us, it works even in Windows proper
Thanks to a person from Russian forum who told me it could help!