Two twitter acounts and no change in sidebar lists.

Have two separate twitter accounts. When using the sidebar and selecting networks to show, there is not change to the twitter updates listed in the sidebar when changing from one twitter account to the other. Since they have differnent friends, they should show different tweet updates right? Also, if I try to "hide from stream" a particularly chatty friend, all the updates disappear fromthe sidebar, not just the one I asked to hide. Using Firefox 3.0.14.