Where do i chane the name of the MY presence link

Hi all,

 Does anyone how do I change the name of the link My presence  to IM ...??

Hi,

In Admin Menu Builder 

This changes it in the Drop Down menu, but doesnt seem to change it in the little text menu next to my Photo. How can i change it there??

OK it did change it. I just had to refresh the page 10 times ....lol