AMD Athlon 64 X2 6000+, Gigabyte Mobo, Sapphire Radeon HD3870 512Mb GPU, FS9 & FSXI'm unable to get AA working in FS9 on this system (clean install, latest Catalyst drivers). AA works in every other game, including FSX.I've tried every combination of enabling & disabling AA in game and in the Catalyst driver. I've tried Rivatuner, ATI Tray Tools, and Catalyst Control Centre. I've done that diligently.Tried Omega Drivers but no change.Tried Driver Cleaner with each driver upgrade.No difference in windowed or full screen mode.Any ideas?

Hi,I do have one. when i launch FS for the first time after logging in XP, I do have AA, then if I minimize FS for any reason and go back to FS after that, AA doesn't work anymore. the same thing happens if I quit FS and relaunch it (in the same XP session). The way I solve this is that when I end up in FS with noAA, I go back to the desktop, change a AA setting in the catalyst control center (for instance change the filter), apply and then go back to FS and AA is back ! I have no rationale for this and would love to have a better and more definitive solution but it work for mehope it helpsbestJulien

I too encountered that problem and tried to work around it. When I launch FS9 (I don't have this problem on FSX) in a windowed mode, and see how/if AA is doing. 9 out of 10 times I have to change settings in the Catalyst Control center, and just like Cuizinier, AA works again. It wasn't always like this. Havn't got the time to try out previous drivers, at this moment I run version 9.3 of the Catalyst center. I do know I encountered this problem on 9.3, 9.4 and 9.5.

Nope, I can't get anti-aliasing whether I start in full screen or windowed mode. Nor can I get it by switching between them or by then trying to force it in CCC

Check this out. I recommend you do not use the FSX default AA, because some add-ons that go in the add-on menu will mess up AA, but if you setup AA through Catalyst Control Center of ATiTrayTools, you can have AA in the game no matter what.Look @ this thread: http://forums1.avsim.net/index.php?showtopic=251945

Check this out. I recommend you do not use the FSX default AA, because some add-ons that go in the add-on menu will mess up AA, but if you setup AA through Catalyst Control Center of ATiTrayTools, you can have AA in the game no matter what.Look @ this thread: http://forums1.avsim.net/index.php?showtopic=251945

Thanks gman, but I suggest you read the topic again. FSX is fine, the problem is FS9!!!I previously used ATI Tray Tools but still no luck with that.

Thanks gman, but I suggest you read the topic again. FSX is fine, the problem is FS9!!!I previously used ATI Tray Tools but still no luck with that.

Yup i have the same problem. i have to goto catalyst and change the AA filter settings every time for it to work.Catalyst 9.10 beta, XP and FS9. Radeon 3850HD

Yup i have the same problem. i have to goto catalyst and change the AA filter settings every time for it to work.Catalyst 9.10 beta, XP and FS9. Radeon 3850HD

May I ask how to determine whether AA is functioning, or not? Are you just observing that objects have the "jaggies" or lack of? Thx

Hi, was just browsing this topic and noticed your thread. I have got the same problem also with FS9. I have a HD4850 and I am not sure when this problem started but obviously to me all the latest Catalysts seem to have this problem. To me it is noticeable straight away as when you are running 8x antialiasing and then after minimising the window to open another App for example then go back to FS9 then you notice straight away that Anti Aliasing has gone because everything is jaggy, the cockpit, the plane, even the outside is shimmering quite badly. Not sure from which Catalyst version this started from but I would probably make a guess and say from 9 onwards but due to having other software and games on here that like to have the latest drivers then its hard to go back. It is a pain and I also think that if ATI even knew about this issue with the new catalysts they probably would not do much about it due to the fact that FS2004 is in their eyes too old to do fix.I am glad I saw this thread though as I know I am not alone as I wasn't sure it was just the effects of having a bloated system and the effects of installing drivers over the last couple of years was starting to affect the registry in some way.ThanksCraig