#3 Error running on OS X

[steve steiner]

OS X 10.7.5, Python 2.7.3
pygame.version.ver
'1.9.2pre'

Click on any part of the initial window, blows up like this:

# python towerdefense.py
Pygame Initialized
Move List Generated
Map Properties Created
Generating Background
Traceback (most recent call last):
File "towerdefense.py", line 101, in <module>
main()
File "towerdefense.py", line 45, in main
background = mapvar.loadMap((scrwid,scrhei),pickMap())
File "/Users/ssteiner/Dropbox/src/ppgtd/towerdefense/src/localdefs.py", line 89, in loadMap
return self.backgroundGen(bgsize)
File "/Users/ssteiner/Dropbox/src/ppgtd/towerdefense/src/localdefs.py", line 63, in backgroundGen
dp = imgLoad(os.path.join('backgroundimgs','roadsquare.jpg'))
File "/Users/ssteiner/Dropbox/src/ppgtd/towerdefense/src/localdefs.py", line 259, in imgLoad
image = pygame.image.load(file)
pygame.error: File is not a Windows BMP file