Jomsocial event module

Hi, there is an issue with the Jomsocial Latest Event Module on Musicity template.
There is no problem with Music Template.
Problem not seems to come from the GK Style as i tried another template for Jomsocial and the bug is still showing.

The bug is in showing top menu.
you can see on the following files
thanks for any help

bug issue:
http://img191.imageshack.us/img191/217/bugwa.png

normal
http://img16.imageshack.us/img16/5734/normaldx.png

Im using Jomsocial 2.8.4

Hi

Have You asked this question already. I believe I've been answering to this. Please check if style is in the latest version and if yes please guide me step by step what to do to see this issue.