Desktop-effects: windows hiding under GNOME panel
When I installed new and shiny Fedora Core 6 on my desktop-computer in the office and enabled desktop-effects, I noticed strange and quite annoying problem – all opened windows were hiding under top GNOME panel. Screenshot below, of just-executed gEdit should describe that problem a bit better, I guess:

I was digging Compiz preferences/settings/options hundreds of times, but without luck. One day ‘eureka’ came, and I reminded myself about one particular command:
[evad@dell620 ~]$ gconftool-2 --recursive-unset /apps/compiz
It resets all Compiz settings to its default values and finally brings a solution. Probably there was some one little Compiz setting screwed up, forcing these windows to misbehave…
February 26, 2007 at 2:58
I’m having the exact same problem, but I can’t seem to fix it. I tried the given command and the problem persists. I haven’t found much of anything on this problem anywhere else. Not sure where else to turn. Any ideas?
February 26, 2007 at 6:59
Hard to say.. Did you try resetting computer after executing that command?
March 12, 2007 at 22:48
I have same problem, command either resetting PC after its execution didn’t help. Where can i find any info about compix settings?
March 12, 2007 at 23:41
Try http://www.go-compiz.org
September 28, 2007 at 19:05
It’s the “place windows” plugin. It needs to be enabled for that to not happen.