I found this out earlier, I'm using 7.32 as of this writing. When I type a sub/domain longer than the size of the treebars width, it expands a scroll bar horizontally across the bottom of the treebar. Normal behavior, except after the domain name becomes the name of the network, the scroll bar still exists and still exists even after the network window has been removed. I can provide a screen shot, maybe a quick video if need-be.
Thanks,
~Pain