Comment 4 for bug 152282

This bug is still present in intrepid, and much more noticeable in the default install since the fast-user-switcher applet is now placed next to the clock.

Here's a zoomed screenshot showing the problem in detail.

Reading from the upstream bug report, it seems like this is caused because the clock applet text is inside a button. This in itself leads to inconsistency across the top panel - since the fusa does not appear in a button, yet both applets are clickable and show drop-down menus.