Forgive me, I've searched and searched, and I know the answer is here somewhere.
I have installed Vista 64bit and FSX is running very well.
I know that x64 uses 4 gigs of RAM, and for the first time the specs actually show the whole 4 gigs being used.
But do I have to go through the Command Prompt and put in the line to make FSX use more than 2 gigs?
And what is that line? Many thanks and my apologies.