Description of problem:

anaconda 11.5.0.29 exception report
Traceback (most recent call first):
  File "/usr/lib/anaconda/yuminstall.py", line 1496, in doPreInstall
    if os.access("/etc/modprobe.d/anaconda".conf, os.R_OK):
  File "/usr/lib/anaconda/backend.py", line 279, in doPreInstall
    anaconda.backend.doPreInstall(anaconda)
  File "/usr/lib/anaconda/dispatch.py", line 205, in moveStep
    rc = stepFunc(self.anaconda)
  File "/usr/lib/anaconda/dispatch.py", line 128, in gotoNext
    self.moveStep()
  File "/usr/lib/anaconda/gui.py", line 1317, in nextClicked
    self.anaconda.dispatch.gotoNext()
  File "/usr/lib/anaconda/iw/progress_gui.py", line 79, in renderCallback
    self.intf.icw.nextClicked()
  File "/usr/lib/anaconda/gui.py", line 1338, in handleRenderCallback
    self.currentWindow.renderCallback()
AttributeError: 'str' object has no attribute 'conf'

Doing PXE boot network kickstart install with VNC.