Windows 7: Sims 2 problems

Okay so i have been trying to install Sims 2 on my computer for the first time since it crashed. when it was fixed it was also updated from Vista to Windows 7.

Sims 2 worked before, on vista, but now when i try and play it after installing it comes up with a message saying
'failed to find any DirectX 9.0c compatible graphics adapters in this system. please make sure you have a DirectX 9.0c compatible graphics adapter and have installed the latest drivers by the manufacturer.'

However i know i already have up to date DirectX, and nothing i try seems to work.



I have got the latest patches, reinstalled DivX and re-installed sims, checked my drivers are up to date etc. etc.

Help?

Have you re-installed the graphics driver? can you go to start and type dxdiag and upload the results to us

okay so im not the most computer savvy person on the planet so i will redily admit that i have no idea how to re-install my graphics driver.


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System Information
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Time of this report: 1/31/2011, 13:00:27
Machine name: ERIN-PC
Operating System: Windows 7 Professional 32-bit (6.1, Build 7600) (7600.win7_gdr.100618-1621)
Language: English (Regional Setting: English)
System Manufacturer: HP-Pavilion
System Model: GX727AA-ABG m9180a
BIOS: BIOS Date: 12/31/07 10:10:58 Ver: 5.15
Processor: Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz (2 CPUs), ~3.0GHz
Memory: 3072MB RAM
Available OS Memory: 3072MB RAM
Page File: 1308MB used, 4832MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: 96 DPI (100 percent)
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7600.16385 32bit Unicode

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DxDiag Notes
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Display Tab 1: No problems found.
Sound Tab 1: No problems found.
Sound Tab 2: No problems found.
Sound Tab 3: No problems found.
Input Tab: No problems found.

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DirectX Debug Levels
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Direct3D: 0/4 (retail)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)

I had this same problem just yesterday, run the installation troubleshooter and it should recommend a XP Compatibility Pack, after the troubleshooter did that, the game ran smooth as ever.