why?

small_ben

[oracle@Linux cdrom]$ ./runInstaller
[oracle@Linux cdrom]$ Initializing Java Virtual Machine from /tmp/OraInstall2003-05-30_01-21-04PM/jre/bin/java. Please wait...
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

Exception in thread "main" java.lang.InternalError: Can't connect to X11 window server using ':0.0' as the value of the DISPLAY variable.
        at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
        at sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:59)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:120)
        at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:58)
        at java.awt.Window.<init>(Window.java:188)
        at java.awt.Frame.<init>(Frame.java:315)
        at java.awt.Frame.<init>(Frame.java:262)
        at oracle.sysman.oii.oiic.OiicInstaller.main(OiicInstaller.java:593)

small_ben

请问怎么解决？