Description:
I updated the system yesterday and it pulled a bunch of xorg and gnome 2.28.1 updates. Since then, the tray icons of gnome-power-manager and networkmanager are not being displayed. The icons seem to be there, they're just not being displayed. If I hover the mouse pointer over them the tooltips show up and if I click on the invisible icons they bring up the pop-up menus as normal.

Additional info:
Portion of /var/log/pacman.log related to the updates that caused this problem:
[2009-10-31 16:42] synchronizing package lists
[2009-10-31 16:43] starting full system upgrade
[2009-10-31 16:51] synchronizing package lists
[2009-10-31 16:51] starting full system upgrade
[2009-10-31 16:52] removed gnome-mount (0.8-1)
[2009-10-31 16:52] upgraded libdrm (2.4.13-1 -> 2.4.15-1)
[2009-10-31 16:52] upgraded libx11 (1.2.2-1 -> 1.3.2-1)
[2009-10-31 16:52] upgraded xextproto (7.0.5-1 -> 7.1.1-1)
[2009-10-31 16:52] upgraded libxext (1.0.5-2 -> 1.1.1-1)
[2009-10-31 16:52] upgraded libxxf86vm (1.0.99.1-1 -> 1.1.0-1)
[2009-10-31 16:52] upgraded fixesproto (4.0-3 -> 4.1.1-1)
[2009-10-31 16:52] upgraded libxfixes (4.0.3-2 -> 4.0.4-1)
[2009-10-31 16:52] upgraded libxdamage (1.1.1-2 -> 1.1.2-1)
[2009-10-31 16:52] upgraded libgl (7.5.1-2 -> 7.6-2)
[2009-10-31 16:52] upgraded ati-dri (7.5.1-2 -> 7.6-2)
[2009-10-31 16:52] upgraded dbus-glib (0.82-1 -> 0.82-2)
[2009-10-31 16:52] upgraded libgphoto2 (2.4.6-3 -> 2.4.7-1)
[2009-10-31 16:52] upgraded f-spot (0.6.1.3-1 -> 0.6.1.4-1)
[2009-10-31 16:52] upgraded gnome-disk-utility (2.28.0-1 -> 2.28.0-2)
[2009-10-31 16:52] upgraded gnutls (2.8.3-1 -> 2.8.4-1)
[2009-10-31 16:52] upgraded gstreamer0.10 (0.10.24-1 -> 0.10.25-1)
[2009-10-31 16:52] upgraded libxv (1.0.4-1 -> 1.0.5-1)
[2009-10-31 16:52] upgraded gstreamer0.10-base (0.10.24-1 -> 0.10.25-1)
[2009-10-31 16:52] upgraded libtheora (1.0-1 -> 1.1.0-1)
[2009-10-31 16:52] upgraded gstreamer0.10-base-plugins (0.10.24-1 -> 0.10.25-1)
[2009-10-31 16:52] upgraded gstreamer0.10-python (0.10.16-1 -> 0.10.17-1)
[2009-10-31 16:52] upgraded inputproto (1.5.1-2 -> 2.0-1)
[2009-10-31 16:52] upgraded kernel-headers (2.6.31.4-1 -> 2.6.31.4-2)
[2009-10-31 16:52] upgraded libatasmart (0.16-1 -> 0.17-1)
[2009-10-31 16:52] upgraded libdmx (1.0.99.1-1 -> 1.1.0-1)
[2009-10-31 16:52] upgraded libgksu (2.0.8-1 -> 2.0.12-1)
[2009-10-31 16:52] upgraded libgsf (1.14.15-1 -> 1.14.16-1)
[2009-10-31 16:52] upgraded libgsf-gnome (1.14.15-1 -> 1.14.16-1)
[2009-10-31 16:52] upgraded libmpcdec (1.2.6-1 -> 1.2.6-2)
[2009-10-31 16:52] upgraded libsexy (0.1.11-1 -> 0.1.11-2)
[2009-10-31 16:52] upgraded libusb1 (1.0.1-1 -> 1.0.3-1)
[2009-10-31 16:52] upgraded libxt (1.0.6-1 -> 1.0.7-1)
[2009-10-31 16:52] upgraded libxmu (1.0.4-2 -> 1.0.5-1)
[2009-10-31 16:52] upgraded libxpm (3.5.7-2 -> 3.5.8-1)
[2009-10-31 16:52] upgraded libxaw (1.0.6-1 -> 1.0.7-1)
[2009-10-31 16:52] upgraded libxcomposite (0.4.0-2 -> 0.4.1-1)
[2009-10-31 16:52] upgraded libxdmcp (1.0.2-2 -> 1.0.3-1)
[2009-10-31 16:52] upgraded libxfont (1.4.0-1 -> 1.4.1-1)
[2009-10-31 16:52] upgraded libxfontcache (1.0.4-2 -> 1.0.5-1)
[2009-10-31 16:52] upgraded renderproto (0.9.3-2 -> 0.11-1)
[2009-10-31 16:52] upgraded libxrender (0.9.4-2 -> 0.9.5-1)
[2009-10-31 16:52] upgraded libxft (2.1.13-1 -> 2.1.14-1)
[2009-10-31 16:52] upgraded libxi (1.2.1-1 -> 1.3-1)
[2009-10-31 16:52] upgraded libxinerama (1.0.99.1-1 -> 1.1-1)
[2009-10-31 16:52] upgraded libxkbfile (1.0.5-1 -> 1.0.6-1)
[2009-10-31 16:52] upgraded libxres (1.0.3-2 -> 1.0.4-1)
[2009-10-31 16:52] upgraded libxtst (1.0.3-2 -> 1.1.0-1)
[2009-10-31 16:52] upgraded libxxf86dga (1.1.1-0.1 -> 1.1.1-1)
[2009-10-31 16:52] upgraded libxxf86misc (1.0.1-2 -> 1.0.2-1)
[2009-10-31 16:52] upgraded mesa (7.5.1-2 -> 7.6-2)
[2009-10-31 16:52] upgraded nautilus (2.28.0-1 -> 2.28.1-1)
[2009-10-31 16:52] upgraded shared-mime-info (0.70-1 -> 0.70-2)
[2009-10-31 16:52] upgraded totem (2.28.1-1 -> 2.28.2-1)
[2009-10-31 16:52] upgraded vte (0.22.2-1 -> 0.22.3-1)
[2009-10-31 16:52] upgraded xf86-input-evdev (2.2.5-1 -> 2.3.0-1)
[2009-10-31 16:52] upgraded xf86-input-synaptics (1.1.3-1 -> 1.2.0-1)
[2009-10-31 16:52] upgraded xf86-video-ati (6.12.4-1 -> 6.12.99.git20091014-1)
[2009-10-31 16:52] upgraded xf86-video-vesa (2.2.0-1 -> 2.2.1-1)
[2009-10-31 16:52] upgraded xorg-apps (7.5-1.1 -> 7.5-2)
[2009-10-31 16:52] upgraded xorg-font-utils (7.4-3 -> 7.5-2)
[2009-10-31 16:52] upgraded xorg-fonts-alias (1.0.1-2 -> 1.0.2-1)
[2009-10-31 16:52] Regenerating font encodings... done.
[2009-10-31 16:52] upgraded xorg-fonts-encodings (1.0.2-3 -> 1.0.3-1)
[2009-10-31 16:52] installed printproto (1.0.4-1)
[2009-10-31 16:52] installed libxp (1.0.0-3)
[2009-10-31 16:52] upgraded xorg-server-utils (7.4-7 -> 7.5-2)
[2009-10-31 16:52] upgraded xorg-server (1.6.3.901-1 -> 1.7.1-1)
[2009-10-31 16:52] upgraded xorg-utils (7.4-4 -> 7.5-1)
[2009-10-31 16:52] upgraded xorg-xauth (1.0.3-1 -> 1.0.4-1)
[2009-10-31 16:52] upgraded xorg-xkb-utils (7.4-2 -> 7.5-1)
[2009-10-31 16:52] upgraded xterm (246-1 -> 250-1)


Steps to reproduce: