Unit movement

I have installed the game and patch 1.2. It works fine, but... when I select a unit, the green zone, showing where that unit can move, does not show up. Any ideas? Is it a bug? I have tried many things, changing options, trying in next turns... restarting the computer... but does not seem to work!

Sorry if it is a known bug... but could not find it in the forum!

I also posted this in the Colosseum. I was adviced to ask also in the technical forum... but i do not find it! I'm getting old I guess...

Well, any help is welcomed! :help: