[gnome] cannot open any window

Question

Hello,
Since this morning I cannot open any window. Not exactly because if I double-click on a folder on my desktop, nautilus shows up but if I double-click on a text-file, nothing happens.
If I do ALT+F2, a launcher appears but if I try do start any application (gedit, firefox, terminal or even nautilus), I see a notification in the bottom of the screen ("starting gedit...") but it disappear after a few seconds.
If I try from the application menu, same. Same with the administration tools.
In the conky (automatic startup), I see that dropbox (also automatic startup) is running but I don't have the icon in the top right corner.
Only one or two percent of the CPU is used and a few megabits for the RAM
Yesterday I added two line in my ~/.xinitrc to start mpd but as it didn't work (couldn't start gnome) I removed them this morning and now I have that (but it could have been caused by something else I did yesterday)
Fortunately I have ubuntu on another partition but I want my archlinux back
Thank you
edit : it seems that it was an error from my /etc/hosts file
Last edited by martvefun (2010-01-20 17:25:34)

Answer 1

First, the process by which OS X checks the validity of root SSL certificates doesn't currently work behind the authenticating SOCKS proxies used on some enterprise networks. If applicable, contact your network administrator. The proxy server may need to have its settings changed.
Disable the built-in application firewall, if it's in use. If you're running a third-party firewall such as “LittleSnitch” or “Hands Off,” disable that. Test.
In some versions of OS X, Parental Controls has a bug that prevents loading of secure websites. Turn it off.
Are the current date (including the year) and time shown on your system clock? If not, correct them and test.
Otherwise, launch the Activity Monitor application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Activity Monitor in the icon grid.
Select All Processes from the menu in the toolbar of the Activity Monitor window, if not already selected. Enter "ocspd" (without the quotes) in the "Filter" text field. Is a process with that name listed?
If not, select Go ▹ Go to Folder from the Finder menu bar. Into the text box that opens, copy the following line of text:
/var/db/crls
From the folder that opens, move these two files to the Trash:
crlcache.db
ocspcache.db
You’ll be prompted for your administrator password when you do this. Then reboot, empty the Trash, and try again.