Tut-Steam-Example crashed at start

[kilon]

I am using 10.6 macos with 1.7.1 sdk panda3d

all this is run on macbook air model 2010 1.4 dual core processor 2 gb ram and graphic card

Chipset Model: NVIDIA GeForce 320M
  Type: GPU
  Bus: PCI
  VRAM (Total): 256 MB
  Vendor: NVIDIA (0x10de)
  Device ID: 0x08a2
  Revision ID: 0x00a2
  ROM Revision: 3571
  Displays:
Color LCD:
  Resolution: 1366 x 768
  Pixel Depth: 32-Bit Color (ARGB8888)
  Main Display: Yes
  Mirror: Off
  Online: Yes
  Built-In: Yes
  Connection Type: DisplayPort
Display Connector:
  Status: No Display Connected

this the error report

2011-04-15 22:12:34.276 ppython[2519:903] -[NSApplication _setup:]: unrecognized selector sent to instance 0x63472a0
2011-04-15 22:12:34.279 ppython[2519:903] An uncaught exception was raised
2011-04-15 22:12:34.279 ppython[2519:903] -[NSApplication _setup:]: unrecognized selector sent to instance 0x63472a0
2011-04-15 22:12:34.280 ppython[2519:903] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSApplication _setup:]: unrecognized selector sent to instance 0x63472a0'
*** Call stack at first throw:
(
 0 CoreFoundation 0x951f06ba __raiseError + 410
 1 libobjc.A.dylib 0x973ac509 objc_exception_throw + 56
 2 CoreFoundation 0x9523d90b -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
 3 CoreFoundation 0x95196c36 ___forwarding___ + 950
 4 CoreFoundation 0x95196802 _CF_forwarding_prep_0 + 50
 5 Tk 0x005afea8 TkpInit + 601
 6 Tk 0x0051b5e2 Tk_PkgInitStubsCheck + 2489
 7 _tkinter.so 0x001d9fe8 Tcl_AppInit + 130
 8 _tkinter.so 0x001d9f09 var_perform + 2295
 9 Python 0x0007ad1f PyEval_EvalFrameEx + 16275
 10 Python 0x0007caaa PyEval_EvalCodeEx + 1734
 11 Python 0x00027472 PyClassMethod_New + 2213
 12 Python 0x0000c268 PyObject_Call + 50
 13 Python 0x00015d77 PyClass_New + 1710
 14 Python 0x0000c268 PyObject_Call + 50
 15 Python 0x000760e0 PyEval_CallObjectWithKeywords + 211
 16 Python 0x0001562f PyInstance_New + 330
 17 Python 0x0000c268 PyObject_Call + 50
 18 Python 0x0007c319 PyEval_EvalFrameEx + 21901
 19 Python 0x0007caaa PyEval_EvalCodeEx + 1734
 20 Python 0x0007af76 PyEval_EvalFrameEx + 16874
 21 Python 0x0007caaa PyEval_EvalCodeEx + 1734
 22 Python 0x0007cb4f PyEval_EvalCode + 87
 23 Python 0x0008bbd4 PyImport_ExecCodeModuleEx + 240
 24 Python 0x0008c771 PyImport_AppendInittab + 1145
 25 Python 0x0008e3a4 PyImport_ReloadModule + 1369
 26 Python 0x0008e6d5 PyImport_ReloadModule + 2186
 27 Python 0x0008ed36 PyImport_ReloadModule + 3819
 28 Python 0x0008edde PyImport_ImportModuleLevel + 50
 29 Python 0x00074f7f _PyBuiltin_Init + 13603
 30 Python 0x0000c268 PyObject_Call + 50
 31 Python 0x000760e0 PyEval_CallObjectWithKeywords + 211
 32 Python 0x0007a0f9 PyEval_EvalFrameEx + 13165
 33 Python 0x0007caaa PyEval_EvalCodeEx + 1734
 34 Python 0x0007af76 PyEval_EvalFrameEx + 16874
 35 Python 0x0007caaa PyEval_EvalCodeEx + 1734
 36 Python 0x0007cb4f PyEval_EvalCode + 87
 37 Python 0x00094a03 Py_CompileString + 111
 38 Python 0x00094aaf PyRun_FileExFlags + 139
 39 Python 0x00095f34 PyRun_SimpleFileExFlags + 784
 40 Python 0x000a1f2c Py_Main + 3226
 41 ppython 0x00001eb5 0x0 + 7861
)
Trace/BPT trap