I have experienced no such problem. There are other factors at play here such as manual config settings and driver changes. I guess timeframe doesn't factor into your equation though. PCs are not static entities, neither certainly is the software installed upon them.

So are you telling us that you can force AA/AF with the video cards control panel with the latest drivers from Nvidia and ATI when in DirectX 10 preview, I think you better take another look. Let's not forget that the external lights on aircraft also do not work properly when in DirectX 10 preview, and I'm talking the default aircraft.

Now you're calling me a liar. I said ON MY 2 GAMING PCs. With high settings and particularly near large bodies of water you better believe the performance increases w/DX10.

A 15-20% increase in performance, no I don't believe it and I haven't seen it on my two gaming PC's. ASUS Rampage II Extreme (1639 BIOS) Intel Core i7-975 Extreme Edition w/Thermalright Ultra-120 eXtreme 1366 RTMushkin Redline Ascent 6GB (3 x 2GB) DDR3 1600 (PC3 12800) (6-6-5-18-1N)Asus/ATI 5870 (Catalyst 9.11)Creative Sound Blaster X-Fi Titanium Fatal1tyWD VelociRaptor 150GB

So are you telling us that you can force AA/AF with the video cards control panel with the latest drivers from Nvidia and ATI when in DirectX 10 preview, I think you better take another look. Let's not forget that the external lights on aircraft also do not work properly when in DirectX 10 preview, and I'm talking the default aircraft. A 15-20% increase in performance, no I don't believe it and I haven't seen it on my two gaming PC's.

When I did my testing this past summer (180 series forceware) everything worked fine, and there was a sizable performance increase particularly in virtual cockpit view and when panning around the aircraft in external view, especially around large bodies of water. I of course no longer use the 180 series drivers and haven't fired up FSX in a couple months so I won't speak to the efficacy of DX10 preview at this point in time.

When I did my testing this past summer (180 series forceware) everything worked fine, and there was a sizable performance increase particularly in virtual cockpit view and when panning around the aircraft in external view, especially around large bodies of water. I of course no longer use the 180 series drivers and haven't fired up FSX in a couple months so I won't speak to the efficacy of DX10 preview at this point in time.

The AA issue and the external aircraft light issue along with the aircraft menu issue in FSX DirectX 10 preview have been present long before Nvidia's 180 series drivers, do a search in this forum it's nothing new. The problem has been present with every ATI Catalyst driver that I've ever tested also.The only performance advantage I've ever seen was how DirectX 10 preview handles

The AA issue and the external aircraft light issue along with the aircraft menu issue in FSX DirectX 10 preview have been present long before Nvidia's 180 series drivers, do a search in this forum it's nothing new. The problem has been present with every ATI Catalyst driver that I've ever tested also.The only performance advantage I've ever seen was how DirectX 10 preview handles "light bloom" and the highest water effect settings but the benefit wasn't worth the other issues. Performance never increased an "average of 15-20%" over DirectX 9, if it did more users would be using it.

I've made my case. If you don't want to believe me that's fine. It's not like I'm telling anyone to run DX10 preview.

I've made my case. If you don't want to believe me that's fine. It's not like I'm telling anyone to run DX10 preview.

So I guess my eyes and every other forum member here (along with other flight sim forums for that matter) who has tested DirectX 10 preview must be mistaken right? We're all wrong and the great