Ubuntu 9.10 panel bug

In ubuntu,ProgramThe default start is displayed in the upper left corner, so I often need to pull it back to the middle. However, during the pull process, I often touch the hidden panel on the top (which has been set to automatically hide). Of course, due to operation habits, I often trigger the hidden panel on the top. At ordinary times, I had to endure it. Today I really want to change the panel on the top to another place, but it is not very comfortable to change the left to the right. At this moment, the tragedy happened. I chose to place it below (a fixed panel already exists below, which is equivalent to the Windows taskbar, the top panel is switched to the bottom, and then hidden automatically... The system is down! No response at all! Forced shutdown. However, after the restart, there is only one empty panel with nothing left, and the running program has no response... The system is down again!

After several unnecessary struggles, I began to search for a solution on the Internet, but almost all of them deleted panel by mistake. I didn't see anything similar to me. I tried several times, but none of them worked. As it is said, there must be a road before a car arrives. In the end, I still find a rough but simple and effective method!

An error occurred while deleting this method.User directoryThe following folders:

. Gnome2
. Gnome2_private
. Gconf
. Gconfd
. Metacity (not necessarily)
. Nautilus

After deletion, restart and the effect is displayed.This method can also solve other problems caused by Panel settings, because its principle is to delete the configuration file and let gnome re-initialize the panel.

Okay, this solves a bug in panel. Next I will share with you how to display the center window during startup in Ubuntu 9.10.

Start a terminal (TErminal), EnterGconf-editor,Two options are involved:

• Go/Apps/metacity/General/Focus_new _Set the property value to smart in windows;
• Go to/apps/compiz/plugins/Place/screen0/Options/Mode: Set the attribute value to 1. Here, four values can be set: 0 = cascade, 1 = centered, 2 = smart, 3 = maximize, 4 = random.

OK. Try another terminal to see if it has been centered?

PS: if it cannot be centered after modification, log out and log on again.