FSX just started freazing?!

Hello all, i have i problem with fsx.. i did some searching but no go, and now i don't know where to turn so i post here Just some days ago my FSX with Acceleration started freezing, i have never had a problem before it just started now I can fly with no problem when i load a flight, but as soon as i try to change the AC or quiting the game it freezes.First i thought it was some new Airplane that messed something up, so i run CC cleaner and reinstalled the game completely but it still happens?!If anyone that can help me with this, i would be really happymy dxdiag..------------------System Information------------------Time of this report: 4/17/2009, 01:03:14 Machine name: DARK Operating System: Windows XP Home Edition (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.080814-1236) Language: Swedish (Regional Setting: Swedish)System Manufacturer: MICRO-STAR INTERNATIONAL CO.,LTD System Model: MS-7360 BIOS: Default System BIOS Processor: Intel® Core2 Duo CPU E8500 @ 3.16GHz (2 CPUs) Memory: 2048MB RAM Page File: 721MB used, 3221MB available Windows Dir: E:\WINDOWS DirectX Version: DirectX 9.0c (4.09.0000.0904)DX Setup Parameters: Not found DxDiag Version: 5.03.2600.5512 32bit Unicode------------DxDiag Notes------------ DirectX Files Tab: No problems found. Display Tab 1: No problems found. Sound Tab 1: No problems found. Music Tab: No problems found. Input Tab: No problems found. Network Tab: No problems found.--------------------DirectX Debug Levels--------------------Direct3D: 0/4 (n/a)DirectDraw: 0/4 (retail)DirectInput: 0/5 (n/a)DirectMusic: 0/5 (n/a)DirectPlay: 0/9 (retail)DirectSound: 0/5 (retail)DirectShow: 0/6 (retail)---------------Display Devices--------------- Card name: NVIDIA GeForce 9800 GT Manufacturer: NVIDIA Chip type: GeForce 9800 GT DAC type: Integrated RAMDAC Device Key: Enum\PCI\VEN_10DE&DEV_0614&SUBSYS_040110B0&REV_A2 Display Memory: 512.0 MB Current Mode: 1680 x 1050 (32 bit) (60Hz) Monitor: Plug and Play-bildsk