I don't have SLI, but for those who do, you may be interested in checking out the latest drivers. (They are listed as 91.47, the Sept release), but contain this textRelease Highlights: Updated October 17, 2006: Updated driver to include NVIDIA SLI profiles for Battlefield 2142, Company of Heroes, and Flight Sim X. Cheers,bt

Thanx bt. Will download and test them tomorrow, when my pc is re-installed!CheersMark

Hi BT,Interesting comment, I have just asked if going SLI would make any improvement to FSX.Got a reply that it would not, evidently this has come from MS that SLI would NOT boost FPS?.I have the Geforce 7900GT PCI Express card that is SLI compliant & was going to get another & stack em.I get 20FPS with just one 7900 AND downloading the drivers (UK VERSION) gave me better performance, however, if we can get more !!!.3DMark for the US version of 91.47 gave me a figure of 15651 bench marks.... Using the UK version of 91.47 gave me 17009 !!! moral somewhere maybe.Cheers.Steve EGCC

Been using these since September but did not notice a profile for it. I use the AntiAliasing Mode. I wonder if somehow the other modes work with it. I will check again.ThanksBob

Nvidia makes periodic updates to their drivers, often without changing version numbers. To get the FSX profile, you need to download the driver again.I read that FSX wan't going to support SLI. I'm glad to see that Nvidia may have found a way to do it. I'm going to download the drivers and see if SLI works. I have 2 7800GT OC's.

I only have the FSX demo (waiting for Aussie release of FSX) but I have tried SLI with the demo and as per FS9 there isn't a great frame rate improvement. However, SLI16AA mode works fine and improves the screen quality without frame rate loss. You will need to install Coolbits to use SLI16AA there is also a SLI8AA available. I have never bothered with the latter as SLI16AA does't lower the frame rate. There is an SLI Profile for FSX in the current drivers but it doesn't seem to do anything. I just devise my own profile and try different things out. There is no magic to SLI, it can only work as fast as it is fed and FSX like FS9 is CPU bound.

While Nvidia can be expected to slip SLI into every possible nook and cranny, it is a stated fact from the developers that FSX does not support distributed computing in SLI/Crossfire form, so what we have here is an NVidia Profile for FSX. Previously you had to add the sim manually and change the settings yourself. Ironically, they ended up very close to mine, except they enabled TSAA by default and that's not a very good idea on a game that is only delivering 11-16fps without it. Stick with standard FSAA modes if you're GPU-limited. Ironically, this is one area where SLI might actually help.The other big deal is that Nvidia are now developing drivers with FSXX in mind. After being practically forgotten with old FS9 for the last couple of years we might see some performance improvements from driver optimisation.Allcott

I downloaded the new Nvidia driver (91.47 forceware)after I switched from ATI X1900XTX (512MB) to Nvidia 7950 GX2 (1GB)...I'm getting 30-40fps (down to 20-25 at KSEA, KATL, KLGA). Interestingly, I gained only 5-8fps over the ATI with 512MB more video memory. Also, in order to achieve 30-40fps, I've incorporated most of the tweaks on the forums. Leads me to think CPU is biggest factor in increasing fps until code is written to push more of the processing to video cards.Shot from Mt Hood looking at Seattle (41fps with sliders all to the right except autogen--normal).Rake