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I have a box with Ubuntu 12.04 installed and then the lxde and lubuntu-desktop packages were installed.

When accessing the box with X2go, suspending the session and returning, the taskbar is mostly blank. It has the faded grey decoration and the network manager symbol. If I click on it, the windows that were open to restore and the launcher buttons mostly work however clicking where the menu should be does nothing.

If I connect to the same box using LXDE as the client instead (startlxde instead of startlubuntu) I don't have this problem.

Any idea what could be causing the problem?

Update: I also noticed that after reconnecting to a suspended X2go session, Alt-F2 doesn't work either

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may be an X2go issue. have you tried another means of connecting? – Ringtail Jan 10 '13 at 23:12
I have tried Xrdp and it doesn't have the exact same problem. When first logging in the left side of the taskbar looks fine but the right side notification area is all wonky with the icons spread out and plain white boxes. When disconnecting and reconnecting, the taskbar, while still not working properly, looks the same as when I disconnected. – bassburner Jan 11 '13 at 16:09

It turns out it is a problem with the volume control plugin. You can remove this plugin by editing ~/.config/lxpanel/Lubuntu/panels/panel

and removing the following section:

Plugin {
    type = volumealsa
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