After a while where the soft did not even launch properly, he finally did ! But still... if i try to get into the Games Manager, it just shows a black screen, with nothing to pick and no textbox. Just a blackscreen...
Is there any solution?
Could you provide more information about your computer?
Ok, then you most likely need to update your graphics card drivers.
At that point I would guess your graphics card drivers or cards themselves have a bug in them. You aren't running on parallels or vmware or virtual box or wine are you?
Ok, at that point I would assume that there is a misconfiguration on your computer, or maybe you need to roll back your graphics card driver due to a bug, or .net on your computer is out of wack. I'm not sure what to say since I don't have access to your computer. I would recommend having someone look at it though.