My profile picture not showing up on Lync 2011 for Mac

I am hoping someone can help me resolve this. I've already uploaded a picture for my microsoft account via the MOP and it's visible there and in the outlook web app's lync too, but not in my Mac's Lync client. I've also tried updating my picture again on the MOP from a PC/Windows to see if that would do it, but nothing. I appreciate any suggestions!

Thanks,
Nat