Blog titles not updated in Admin Bar

I am fairly new to WPMU/BP. I installed it at (site protected). I created four different blogs. In all four blogs, I changed the name to something other than the default My Blog. However even then, for two of these blogs, the name under My Blogs dropdown in the BP Admin Bar is showing as My Blog. I have searched for various places where the site name features within the dashboard and have made relevant changes but still no use.

Please help.