register url contains 'jomsocial'

Hi
Only a small issue
login all works with SClogin
But
when i click on the sclogin 'register' button, either in the module (in main menu) or the modal box, the url contains 'jomsocial'

weirdly, when I use the jomsocial register button the url does not contain the word jomsocial


website page showing sclogin regsiter button -

Any ideas on how I remove the word jomsocial from the url when I click on the sclogin register button
Thanks
Iain

*Fixed - I have 2 main menus - 1 main joomla menu and 1 x en menu - found the issue was with the menu alias in one of the menus.