Cura won't open.

[nailcannon 0]

The thing was working just last week. Now it hangs on the opening splash screen. Here is the output log:

Traceback (most recent call last):

File "H:\Program Files (x86)\Cura_15.04.3\python\lib\site-packages\wx-2.8-msw-unicode\wx\_core.py", line 14660, in

lambda event: event.callable(*event.args, **event.kw) )

File "Cura\gui\splashScreen.py", line 15, in DoCallback

self.callback()

File "Cura\gui\app.py", line 103, in afterSplashCallback

from Cura.gui import mainWindow

File "Cura\gui\mainWindow.py", line 17, in

from Cura.gui import sceneView

File "Cura\gui\sceneView.py", line 28, in

from Cura.gui.util import previewTools

File "Cura\gui\util\previewTools.py", line 12, in

from Cura.gui.util import openglHelpers

File "Cura\gui\util\openglHelpers.py", line 17, in

glutInit() #Hack; required before glut can be called. Not required for all OS.

File "H:\Program Files (x86)\Cura_15.04.3\python\lib\OpenGL\GLUT\special.py", line 323, in glutInit

_base_glutInit( ctypes.byref(count), holder )

TypeError: 'NoneType' object is not callable

Can anybody help me please? I've updated my graphics drivers. Uninstalled and reinstalled just about every piece of software I can think might be related to cura. Any ideas?