[all variants] Tasks not on taskbar, or hacked?

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http://ubuntuforums.org – I've been having problems recently with the functionality of the taskbar. While researching it, I came across a post by etienoo, from just a few hours ago. The weird thing is that I am using Gnome and etienoo is using xfce. My problem is that the task bar stays empty. I have a task bar, but when I start a new application nothing appears on the taskbar showing that something is running. The day before the problem started, I installed Red Eclipse (which I have since uninstalled). The next morning my desktop changed upon startup; the wallpaper/background changed and my quick icons in the upper le (Hardware)