I have a macbook and a ms intellimouse explorer wireless. It has two little thumb buttons on it's left side which I love to use for copy and paste. But, with the intellipoint software on the mouse cd, these buttons are not recognized, are nowhere to be found I can't set any options for them at all, even though they're mentioned in the software manual. The picture the intellipoint software shows is an ancient white wired ms mouse. Do you think it isn't recognizing what mouse I have? Any ideas for how to fix this? Thanks.