panda basic compiling problem

i am using panda 1.8.1.i compiled the basic panda program on windows 7. the error has generated in python is as follows
DirectStart: Starting the game.
Known pipe types:
(all display modules loaded.)
:display:gsg:glgsg(warning): Buffers advertised as supported by OpenGL runtime,
but could not get pointers to extension functions.
:display:gsg:glgsg(error): at 1564 of c:\buildslave\dev_sdk_win32\build\panda3d
panda\src\glstuff\glGraphicsStateGuardian_src.cxx : invalid enumerant

i don’t understand,what was happened,please help

I suspect this means you should update your graphics driver. Visit the web page for your graphics card manufacturer and download the latest driver available for your card.