Wrong TopMenu with Buddypress

Hey guys!

I got a problem with the Buddypress Plugin.
I work with the Kleo Theme which should work with Buddypress.
On my site I have a mainmenu and a topmenu.
With Buddypress deactivated everything looks good.
After activating buddypress it overwrites the topmenu and I have there the same content as I have in the mainmenu.
But thats not what i want :-(.
How can I change the Buddypressmenu?
How can I solve my problem?