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Hi, I'm quite a newbie, using openSUSE 11.0. I encounter a problem when I want to connect to the internet. For this, I use sudo NetworkManager The problem is that I cannot open any applications anymore after having used the sudo command (so I also need to open the browser before connecting to the internet). The error I get is: Invalid MIT-MAGIC-COOKIE-1 keyError: cannot open display: :0.0 I have no clue why I suddenly have this problem, since it worked fine for a couple of days. Can anybody help?

Well, I'm fairly sure the error is because your root account can't open the display while your user has it. I'm really unclear why you're using "sudo NetworkManager" to begin with. You should probably just start the network manager applet. From the command line type: nm-applet & No sudo necessary. Unless you're not using a panel or have no system tray?

Well, honestly this is probably not the correct thing to do, but it's handy information for starting GUI programs from the shell, especially if you are using something like [b]cron[/b]. You can set the DISPLAY variable within the command, like this:[code=xml]sudo DISPLAY=:0.0 NetworkManager[/code]That might not fix anything for you, but I've used if for some cron things before.