My computer is in for upgrades. The tech has called and stated the only way he can get 4 gb to work is upgrade to VISTA. The most graphics is a Nvidia 7800 (because of AGP connection on the motherboard) I am not a computer techie which this stuff is gobblegook to me) Anyway, the long and short of this will FS9 work with VISTA ( I must have 30 add-ons)?Thank youJCP

It sure will. But what the tech said is not true! 64-bit Windows XP will also recognize up to 16 GB of RAM. Also there are 7900/7950 cards out there for AGP, but it's your choice. I have FS9 on Vista, it's flawless.Regards,BoeingGuy

I know no one's going to read this now, but I just wanted to say I'm running Vista 64 with a PCIE 8800GTX 768MB Graphics card, FS9 and various addons. PMDG 747 works great but thats the one that never/rarely gives me any trouble, and I put that down to vista anyway. Boeing guy is right, no 32bit operating system can address any more than 3GB of ram. its all about the length of the address's more than 3GB requires, 32 isn't enough space.I think FSX is georgeous,but while FS9 with decent addon(PMDG 747, activesky 6, Traffic 2007(question the term decent here) Radar Contact and global terrain 2008) at full settings EVERYTHING, runs fine. still feel FSX is sluggish with addons. nothing spoils the sim like jerky frame rates IMHO.Vista you can't run dual screen in the sim unless you have two graphics cards, or a matrox THINGY-M-GIGGY, you guys know what I mean.Ian.VISTA 64 home premiumNvida 8800GTX 7684GB RAM (Dual channel mode)Core2duo 6600 dual 2.4GHzCH yoke