Abdulla Albinali wrote on Jul 24^th, 2011 at 3:56pm:

Also I want to know if I will be able to install my CS adds on it, cause as you know I must buy new FSX because the old one is registered for my old PC.

I bought my copy of FSX before it was released (I pre-ordered it). I am currently on my 4^th or 5^th computer since then. I just uninstalled it from my old computer and reinstalled it on the new one. I did have FSX installed on my wife's computer, at the same time as it was installed on my computer, when my brand new Graphics Card turned out to be faulty. I had no problem Activating it on hers, but I did have trouble with Activation it again on my computer once my replacement Graphics Card arrived. I tried to activate it 3 times in one week, the third one failed. I think there is a time limit between activations of FSX, but don't know how long that is. When I first got FSX, the talk was that you were only allowed to activate it 3 times, but I have activated mine at least a dozen times so far. Maybe it was really 3 times within a certain period, rather than ONLY 3 times.

Mark