Blogs Mu and Safari 4.1.3 - adminbar area white when logged out

Hi there

I have just upgraded to Blogs MU 1.1.2 from 1.1. When using Safari 4.1.3 I experience a white space in the adminbar area when logged out (no sliding effect). I had this same occurrence initially with the Blogs MU 1.0 version in all browsers, which was fixed with the upgrade to 1.1. Now after a further upgrade to 1.1.2 it still works fine with mozilla browsers (ff and camino), but not with safari anymore. I am a bit restricted to Mac OSX 10.4.11 at present and have no ability to test with other browsers (IE, Chrome).

Can anybody have a look into this please and suggest a fix. thanks a lot.