Weird behavior of Desktop Env

[Aaron Konstam]

On Wed, 2012-05-09 at 19:21 -0700, JD wrote:
> On FC16, with all latest updates.
> My session is XFCE4.
> 
> Until a couple of days ago, XFCE was working just fine.
> Suddenly, without any provocation from me, (nor new packages
> installed, no packages deleted) - I am getting 2 different sets of
> panels.
> One set of panels is that of Gnome - on top is the launch bar,
> and on bottom is the task switcher bar.
> 
> I also have the xfce4 panels, which are on right (launch bar) and
> on left, task switcher bar.
> 
> How can I stop this insanity?
> 
> I am starting to get very paranoid about F16 that it may have been
> shipped fully equipped with a trojan.
> 
> This, in addition to what I have been seeking help for - no audio
> for media players. Only Firefox can play online YT videos and
> audio works then.
> 
> I am indeed on the verge of completely dumping FC16. It has
> been a very frustrating experience.

replace metacity by xfwm4 to fix xfce
I suspect xfwm4 is not running on your machine.