[arch-general] Xorg & network problem

Hi, Arch install is graceful.After "pacman -S xorg gnome", the startx brought me to gnome. everygthing seem fine till I quited X by Ctrl+Alt+BackSpace, After a while i tried to re-startx and just had no response. No message is shown and the X won't show up.The .xinitrc is clean, and the xorg.conf is allright, and I don't have any special hardware. About the netowkr, The networking is configured in rc.conf, and I believe it's clean. after i swift my laptop to office, I can't reconfigure networking by execute "/etc/rc.d/network restart". :: Starting Network [BUSY] SIOCADDRT: No such process Any solution? -- Best regards, Zihui