그래픽 카드 인증이 됐는데…??

몇번 OpenGL하고 Direct3D를 번갈아 가면서 테스트 하는중…
한 4~5번까지는 인증되었다고 나왔는데….그다음부터는 계속 인증이 안되었다고 나오네요..
한번 할때 인증에 횟수 제한이 있나요?
그래픽 드라이버도 다시 깔고 그랬는데…왜그럴까요.ㅠ.ㅠ
혹시 몰라서 진단했던 내용을 올립니다. 참고해주세요..

그래픽 드라이버가 인증되지 않았음
그래픽 드라이버 ID: Direct3D Software Renderer
Direct3D Hardware ID: 10de 391 0 a1
그래픽 드라이버 파일 nv4_disp.dll의 버전: 6.14.10.8426
Direct3D 소프트웨어 렌더러를 사용하는 중
해결 방법 = 0x00000000
디스플레이가 32-비트 색상을 사용하고 있음

Inventor Version: Build: 344a, Release: 11 SP2 – Date: Fri 08/18/2006

HW Library Version = $Revision: #773 $
HW Library Date = $DateTime: 2006/11/10 13:29:21 $
Windows XP

DirectX Version: 9.0c
Renderer: SW
Adapter Description: NVIDIA GeForce 7600 GT
Vendor: NVIDIA
Vendor ID string: 0x000010de
Device: GeForce 7600 GT
Device ID string: 0x00000391
Graphics HW Memory: 256.0 MB
Display Mode: 1680 x 1050 (32 bit) (60Hz)
DDI Version: 9 (or higher)
VendorID: 10de
DeviceID: 391
SubSystemID: 0
Revision: a1
Graphics driver file nv4_disp.dll is version 6.14.10.8426
rating 0, optimization level 2

Optimization Level = 0
Options = 0x00000000
Warning Options = 8

Hardware Library 2.0x000010de
Settings for optimized and conservative:
Workarounds: 0x00000000, 0x00000000
Texture Font Precision: 32

swap behavior: saveRestore(4)

Display Information:
Back Buffer Format = A8R8G8B8
Depth Stencil Buffer Format = D24S8
Monochrome Bitmap Format = A8L8

Device Adapter Information:

AdapterOrdinal = 0
MasterAdapterOrdinal = 0
AdapterOrdinalInGroup = 0
NumberOfAdaptersInGroup = 1

Device Processing Information:

DeviceType = 3
Device Behavior = 0x00000022
Vertex Processing = Software
Device Transform and Light = Software
Device Rasterization = Software
Supports SlopeScaleDepthBias = False
Supports DepthBias = False
Supports CubeMaps = False
Supports Non-Power-Of-2 Textures = True
Supports Non-Power-Of-2 Textures Conditionally = False

Device Size Limits:

MaxPrimitiveCount = 65535
MaxVertexIndex = 65535
MaxTextureWidth = 1024
MaxTextureHeight = 1024
MaxSimultaneousTextures = 2
NumSimultaneousRTs = 1
MaxActiveLights = 4294967295
MaxUserClipPlanes = 6

Device Shader Information:

VertexShaderVersion = 0.0
PixelShaderVersion = 0.0
MaxVertexShaderConst = 0
PixelShader1xMaxValue = 1.600000E+001
MaxVShaderInstructionsExecuted = 0
MaxPShaderInstructionsExecuted = 0
MaxVertexShader30InstructionSlots = 0
MaxPixelShader30InstructionSlots = 0
VS20Caps = 0x00000000
DynamicFlowControlDepth = 0
NumTemps = 0
StaticFlowControlDepth = 0
PS20Caps = 0x00000000
DynamicFlowControlDepth = 0
NumTemps = 0
StaticFlowControlDepth = 0
NumInstructionSlots = 0

The Remainder of the Device Caps Information:

Caps = 0x00000000
Caps2 = 0x00000000
Caps3 = 0x00000000
PresentationIntervals = 0x00000001
CursorCaps = 0x00000000
DevCaps = 0x0000a750
PrimitiveMiscCaps = 0x00000072
RasterCaps = 0x00212191
ZCmpCaps = 0x000000ff
SrcBlendCaps = 0x00001fff
DestBlendCaps = 0x000007ff
AlphaCmpCaps = 0x000000ff
ShadeCaps = 0x00084208
TextureCaps = 0x000040c5
TextureFilterCaps = 0x03030300
CubeTextureFilterCaps = 0x00000000
VolumeTextureFilterCaps = 0x00000000
TextureAddressCaps = 0x0000001f
VolumeTextureAddressCaps = 0x00000000
LineCaps = 0x0000001f
MaxVolumeExtent = 0
MaxTextureRepeat = 256
MaxTextureAspectRatio = 0
MaxAnisotropy = 1
StencilCaps = 0x000000ff
FVFCaps = 0x00180008
TextureOpCaps = 0x000078ff
StretchRectFilterCaps = 0x00000000
VertexTextureFilterCaps = 0x00000000
MaxTextureBlendStages = 2
DeclTypes = 0x00000000
VertexProcessingCaps = 0x00000000
MaxVertexBlendMatrices = 0
MaxVertexBlendMatrixIndex = 0
MaxPointSize = 1.280000E+002
MaxStreams = 1
MaxStreamStride = 256
DevCaps2 = 0x00000011
MaxNpatchTessellationLevel = 0.000000E+000
MaxVertexW = 1.000000E+004
GuardBandLeft = -4.096000E+003
GuardBandTop = -4.096000E+003
GuardBandRight = 4.095000E+003
GuardBandBottom = 4.095000E+003
ExtentsAdjust = 0.000000E+000
Reserved5 = 0x00000000