blender 2.63 3dx driver not found OSX


this morning I opened blender 2.63a and it was lagging like I never seen it before :spin:
My screen is flickering black screen when I’m in blender.
To try to solve the problem I opened blender with the terminal and this errors showed up: “ndof: 3Dx driver not found
2012-07-31 12:01:58.177 blender[4199:407] invalid pixel format
2012-07-31 12:01:58.179 blender[4199:407] invalid context
found bundled python: /Applications/”

plz help me :frowning: