Emulator

What's the problem?
@issue plugin:OPENGL
Run a game,After a little,i get some exception,and them can found on exceptioninfo.txt
like this:
Unhandled Exception
Code: 0xC0000005
Call stack info:
ntdll!0x7C930A19 : wcsncpy
ntdll!0x7C93084C : wcsncpy
Dolphin!0x00472A9D : ?
Dolphin!0x00440B28 : ?
USER32!0x77D18734 : GetDC
USER32!0x77D18816 : GetDC
USER32!0x77D2A013 : IsWindowUnicode
USER32!0x77D2A039 : CallWindowProcW
OPENGL32!0x5EF3699B : wglSwapBuffers
USER32!0x77D18734 : GetDC
USER32!0x77D18816 : GetDC
USER32!0x77D28EA0 : DefWindowProcW
USER32!0x77D28EEC : DefWindowProcW
ntdll!0x7C92E473 : KiUserCallbackDispatcher
Dolphin version with the problem (as it appears in the title bar, Ex.: "R
4779" or "R 6403M"):
@svn r7185
(optional) Dolphin version that does not have the problem:
@before svn r7185
Operating system and version:
32-bit or 64-bit:
@32-bit
Game ID (as it appears in game properties, Ex.: "GZ2P01" or "RSBE01"):

Build command-line (not on Windows):

Was the ISO a plain dump from disc, compressed and/or scrubbed?

Please provide any additional information below.
my computer:
operating system:windows xp sp3
cpu:AMD Phenom 21400
gpu:Nvidia geForce 9500gt
ram:2GB