OLD BETA patch 14413 - May 4, 2011(!!!) - do not install!

[shane]

Hi all, with this patch now i have the antialiasing fully working !!! good news !!!

but i have some stranges things:
with the lastest final patch my game is fluid, (good fps, no stuttering, etc..)
and when i take off or land with my hurricane, the game has always a good fps.

but on the latest patch 14413 and the previous beta patch, the game is good, except on the take off and on the landing.
under 40-50kmh the game has a good fps (32-35fps) above 80kmh the game has a good fps (35+ fps)
but with the 50-80kmh approximately, the game goes to 7-8fps on my computer.
and this occurs at take off and at landing on the same airport (close to dover).

my system:
I5 750 OCed to 3,36ghz, 4Gb DDR3 PC1600 Geforce GTX580 1,5Go
settings:
1920*1200 all settings maxed.
tested with and without AA.