cant work my webcamera on msi u100/10.5.4

[Guest komos]

i need some help here

i've installed mac os on my msi thanx to paul's guide

almost everything works smoothly except my webcamera

i installed all the kexts provided from paul

and when i start photo booth i get an error message

''the graphics card installed on this machine does not support photo booth''

when i start image capture

i get message ''no image capture device connected''

i press fn+f6 but nothing happens

any idea, thnx in advance