Heavy graphic problems [Mobility Radeon 9600]

[ilcheffe]

Hi,

I'm having heave problems playing Civ4. When a leader of an other nation wants to talk to me, the animation freezes and I have to restart my Notebook. Or sometimes, when ending a round, the screen becomes black, just the mouse pointer still visible and movable. In addition, sometimes black artefacts appear on the map.

What can I do? I have updated my graphic and mainboard drivers, tried every in-game and driver setting but it's still the same.

Here is my system:

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System Information
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Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 2 (2600.xpsp_sp2_gdr.050301-1519)
Language: German (Regional Setting: German)
System Manufacturer: Gericom
System Model: N251S0
BIOS: Version 1.00
Processor: Mobile Intel(R) Pentium(R) 4 CPU 2.40GHz
Memory: 512MB RAM
Page File: 284MB used, 964MB available
DirectX Version: DirectX 9.0c (4.09.0000.0904)
DX Setup Parameters: Not found
DxDiag Version: 5.03.2600.2180 32bit Unicode

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Display Devices
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Card name: ATI MOBILITY RADEON 9600/9700 Series (Omega 2.6.75a)
Manufacturer: ATI Technologies Inc. (Omega 2.6.75a)
Chip type: ATI MOBILITY RADEON 9600/9700 Series AGP (0x4E50)
DAC type: Internal DAC(400MHz)
Device Key: Enum\PCI\VEN_1002&DEV_4E50&SUBSYS_23141584&REV_00
Display Memory: 64.0 MB
Current Mode: 1024 x 768 (32 bit) (60Hz)
Monitor: Standardfernseher
Monitor Max Res: 640,480
Driver Name: ati2dvag.dll
Driver Version: 6.14.0010.6575 (English)
DDI Version: 9 (or higher)
Driver Attributes: Final Retail
Driver Date/Size: 10/14/2005 05:11:22, 241664 byte

BTW: Does anyone now, what

; Set to 1 for dynamic animation paging
DynamicAnimPaging = 1

in civilization4.ini does change?

Thank you so much
Bye!