Please describe the problem:
Sometimes when switching tabs in Nautilus, the vertical scrollbar doesn't appear until I hit F5 to refresh the Nautilus window.

Steps to reproduce:
1. Open a Nautilus window and navigate to a folder that contains enough files for the vertical scrollbar to appear.
2. Open a new tab, and navigate to a folder where there aren't enough files for the scrollbar to appear.
3. Navigate quickly back to the first tab.

Actual results:
After switching back to the first tab, the vertical scrollbar is not visible, until hitting F5 to refresh the window

Expected results:
The vertical scrollbar should be visible after switching back to the first tab

Does this happen every time?
Pretty much

Other information:
Some screenshots:

After step 1: http://launchpadlibrarian.net/20041403/Screenshot.png
After step 2: http://launchpadlibrarian.net/20041415/Screenshot-1.png
After step 3: http://launchpadlibrarian.net/20041428/Screenshot-2.png