DC安装之后无法出现图形界面

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Version L-2016.03-SP1 for linux64 - Apr 18, 2016
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Initializing...
然后蹦出“gui-start”什么的，就是不出图形界面

有可能是license原因，但大多数是图形界面设置问题，设置如下：
1、进入管理员账户；
2、执行xhost +;
3、切回root用户，再执行，图形界面完美出现。