intel顯卡問題

我用緊INTEL G41顯卡,玩CS個陣吾係幾須,整黎整去都吾掂,關吾到垂直同步,希望能解決,如果整吾掂就想換張顯卡,最好800$下
System Information:

Operating System: Windows 7 專業版 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.120330-1504)

System Manufacturer: eMachines
System Model: EL1852
BIOS: Default System BIOS
Processor: Intel(R) Celeron(R) CPU E3400 @ 2.60GHz (2 CPUs), ~2.6GHz
Memory: 2048MB RAM
Available OS Memory: 2014MB RAM
Page File: 1753MB used, 2272MB available
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 64bit Unicode

DirectX Debug Levels:

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)


Display Devices:

Card name: Intel(R) G41 Express Chipset
Manufacturer: Intel Corporation
Chip type: Intel(R) 4 Series Express Chipset Family
DAC type: Internal

Display Memory: 814 MB
Dedicated Memory: 64 MB
Shared Memory: 750 MB
Current Mode: 1366 x 768 (32 bit) (60Hz)
Monitor Name: 一般 PnP 監視器
Monitor Model: Acer V193HQV
Monitor Id: ACR010C
Native Mode: 1366 x 768(p) (59.790Hz)
Output Type: HD15
Driver Name: igdumd64.dll,igd10umd64.dll,igdumdx32,igd10umd32
Driver File Version: 8.15.0010.2555 (English)
Driver Version: 8.15.10.2555
DDI Version: 10
Driver Model: WDDM 1.1
Driver Attributes: Final Retail
Driver Date/Size: 10/13/2011 12:05:50, 6549504 bytes
WHQL Logo'd: n/a
WHQL Date Stamp: n/a
Vendor ID: 0x8086
Device ID: 0x2E32
SubSys ID: 0x03901025
Revision ID: 0x0003
Driver Strong Name: oem13.inf:IntelGfx.NTamd64.6.0:iEGL0:8.15.10.2555:pci\ven_8086&dev_2e32
Rank Of Driver: 00E62001
Video Accel: ModeMPEG2_A ModeMPEG2_C ModeWMV9_B ModeWMV9_C ModeVC1_B ModeVC1_C