So I bought a new computer and installed two graphics cards1. Ati crossfire edition 19502. Ati crossfire 1900xtxI use two monitors , one as primary, one in extended modeI also am running both 9.1 and fsxHere are my finding and commentsGeneral comment and watch this. In crossfire mode, you cannot run two moniters, No extended desktop!. The cards will only run one primary screen. In my setup ,I am always using the second monitor for vatsim, squawkbox , wx etc. I was shocked by that limitation.fs 9.1The frame rates are good , not amazingIn extended moded 1600x1200x32 the res is good but even stillin crossfire mode the frame rates were not that much better than when not in crossfire mode, and I only had one screen operatingfsxFSX would not even start in crossfire modeI recvd an exception error and had to repair the install.FSX did run in the non crossfire mode but the data on the extended desktop was marginal at best, and then failed to run at allIm not sure if that was fsx or the ati cardsHas anyone else had any experience with any of this?Thank youPeter

Man, that must be a tough nut to swallow after puttig out that kind of cash :-( Guess I will hold my own with the system I got until the dust settles. Makes me think that multiple graphic cards may not be the road most follow after the DX10 cards are released.I figure in about 6 months or so I will build my FSX machine using the Matrox triple head, cpu dual core (quad core?), of some type, DX10 card of some type, 4 gig of ram, Vista, bla-bla....But for now I am finally getting some decent teens and 20's fps in the hills and cities with settings about midway and applying the tweaks out there but FS9 will still be my main sim for the forseable future.Intel P4 3.4 OC to 3.6ATI X800 XT All-in-One 256MB DDR3 AGP(Cat 6.10)2gig DDR3 500 OCZ RAM (2x1GB)2x21" Trinitron monitors1 terabyte of WD hard disksAsus MB running Windows XP Pro SP2CH Pro Yoke/Pedals/Throttle QuadrantTrackIR Pro 4

>Man, that must be a tough nut to swallow after puttig out>that kind of cash :-( >>Guess I will hold my own with the system I got until the dust>settles. Makes me think that multiple graphic cards may not>be the road most follow after the DX10 cards are released.>>I figure in about 6 months or so I will build my FSX machine>using the Matrox triple head, cpu dual core (quad core?), of>some type, DX10 card of some type, 4 gig of ram, Vista,>bla-bla....>>But for now I am finally getting some decent teens and 20's>fps in the hills and cities with settings about midway and>applying the tweaks out there but FS9 will still be my main>sim for the forseable future.>>Intel P4 3.4 OC to 3.6>ATI X800 XT All-in-One 256MB DDR3 AGP(Cat 6.10)>2gig DDR3 500 OCZ RAM (2x1GB)>2x21" Trinitron monitors>1 terabyte of WD hard disks>Asus MB running Windows XP Pro SP2>>CH Pro Yoke/Pedals/Throttle Quadrant>TrackIR Pro 4>Thanks for the sympathy, I needed it, but its not all bad because even without the crossfire enabled fs9.1 the reult works amazing in 9.1. FSX will need some tweaking, I find that the views on the second screen are marginal. Perhaps I have too much enabled. Still need to fiddle a bit.So the question is that my platform may not be perfect , and yes I could have waited, but then again it is not easy to determine when to jump in and start buying.Regards Peter