multi site favicons

Hi i have had multi site for a bit not and i love it. I did notice today however than something changed.

When i had my blogs different, they all had different favicons. Now that they are part of the multisite, they all have the same favicon.

Is there anyway to change that? its not a huge deal but i do have enough blogs that the same favicon could be confusing to multiple members. So it would be nice to have each site have its own assigned favicon.

Thanks…