Почему игры на компе стали глючить?

System Information
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Time of this report: 4/8/2011, 01:06:51
Machine name: PROVIEW-536B72D
Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 2 (2600.xpsp_sp2_rtm.040803-2158)
Language: Russian (Regional Setting: Russian)
System Manufacturer: RS485_
System Model: AWRDACPI
BIOS: )Phoenix - Award WorkstationBIOS v6.00PG
Processor: AMD Sempron(tm) Processor 3000+, MMX, 3DNow, ~1.6GHz
Memory: 478MB RAM
Page File: 328MB used, 787MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 10.0 (4.10.0000.18000)
DX Setup Parameters: Not found
DxDiag Version: 5.03.2600.2180 32bit Unicode

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DxDiag Notes
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DirectX Files Tab: No problems found.
Display Tab 1: No problems found.
Sound Tab 1: The file ALCXWDM.SYS is not digitally signed, which means that it has not been tested by Microsoft's Windows Hardware Quality Labs (WHQL). You may be able to get a WHQL logo'd driver from the hardware manufacturer.
Music Tab: No problems found.
Input Tab: No problems found.
Network Tab: No problems found.

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DirectX Debug Levels
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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)

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Display Devices
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Card name: ATI Radeon Xpress 1150
Manufacturer: ATI Technologies Inc.
Chip type: ATI Radeon Xpress Series (0x5974)
DAC type: Internal DAC(400MHz)
Device Key: Enum\PCI\VEN_1002&DEV_5974&SUBSYS_21401019&REV_00
Display Memory: 128.0 MB
Current Mode: 1280 x 1024 (32 bit) (60Hz)
Monitor: Monitor Max Res: 1600,1200
Driver Name: ati2dvag.dll
Driver Version: 6.14.0010.6925 (English)
DDI Version: 9 (or higher)
Driver Attributes: Final Retail
Driver Date/Size: 4/28/2009 08:41:00, 325120 bytes
WHQL Logo'd: Yes
WHQL Date Stamp: n/a
VDD: Mini VDD: ati2mtag.sys
Mini VDD Date: 4/28/2009 10:13:24, 3565568 bytes
Device Identifier: {D7B71EE2-1A34-11CF-A468-4A01A1C2CB35}
Vendor ID: 0x1002
Device ID: 0x5974
SubSys ID: 0x21401019
Revision ID: 0x0000
Revision ID: 0x0000
Video Accel: ModeMPEG2_C ModeMPEG2_D ModeWMV8_B ModeWMV8_A ModeWMV9_B ModeWMV9_A
Deinterlace Caps: {6E8329FF-B642-418B-BCF0-BCB6591E255F}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
{3C5323C1-6FB7-44F5-9081-056BF2EE449D}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,2) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{552C0DAD-CCBC-420B-83C8-74943CF9F1A6}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,2) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{6E8329FF-B642-418B-BCF0-BCB6591E255F}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
вся почти инфа о компе, всё не вместилось, видюха встроенная, игры пахали нормально, а в один прекрасный день с ЖУТКИМИ ЛАГАМИ, И ВИНДУ 10 РАЗ ПЕРЕУСТАНАВЛИВАЛ, И НОЛЬ РЕЗУЛЬТАТ.