This tool made all the difference in the world for me. Also External FPS Limiter, and an autogen tweak suggested over at the Orbx forums. Do a little searching, you'll find this stuff, and will be amazed at the improvement.

Tried it all, I researched it for a week, found conflicting tweaks, trial and errored (?) them all etc etc etc. It did improve things but still get micro stutters. What's the autogen tweak? Is that changing the UTF file size or the tree density one, tried them both .... nada.

What's the autogen tweak?

I think that's the one which limits the number of trees and buildings per scenery cell. Just change your cfg file.

One suggestion:

[TERRAIN]
TERRAIN_MAX_AUTOGEN_TREES_PER_CELL=800
TERRAIN_MAX_AUTOGEN_BUILDINGS_PER_CELL=3000

I recommend flusifix for fiddling with FSX. It`s a freeware tool. F.e. said trees and buildings can be set in there without poking around manually in the FSX.cfg.

which version Kilo and what do you think to this?

http://www.venetubo.com/fsx.html

cheers:)

I have flusifix v5. You should use it too, as it is completely in English (if you make the right decision on first start-up :D). You only need to unzip it, no installer there. I always trough it into the FSX main directory.

The tool behind your link is good. Copy your current FSX.cfg before though, in case something goes wrong.

Cheers Kilo - I'll check it out.

Have you tried Drver Cleaner 2? You may have a driver issue. I'm running an AMD Phenom X2 955,Asus MoBo and an HD5770 GPU and get great results.