FYI: Multiple video cards

Just in case someone else runs into this issue. I have a:geForce 7900 GS KO 256MB and,geForce 8600 GTS 512MBSLI disabled.Trying to run three monitors. Vista-32 had no problems displaying all three monitors.However, FSX would not load and crashed everytime. Tried for days to figure out the problem. Well, to fix it I had to purchase another:geForce 8600 GTS 512mbOnce I replaced the geForce 7900 with the new card, FSX had no problems loading. So, I have drawn the conclusion that different nvidia series is a problem in FSX and Vista-32. Maybe someone knows how to get around this but I could not figure it out. Hope this helps someone...because it drove me crazy and I was very close to giving up on FSX.See you @FL320-Ray