x-win 连不上Solaris 10的问题

ragecf

麻烦各位，需要通过堡垒机远程连接solaris 10的图形界面，堡垒机上用的是X11，同样的配置连接Solaris 8, 9, 10U9都没问题，
就是一台Solaris 10 U6的V880始终连不上

现象是连上黑屏，一会自动就断了，重启了dtlogin也不行，日志如下

$ tail -f /var/dt/Xerrors
      after 0 requests (0 known processed) with 0 events remaining.

Fri May 27 16:10:26 2011
error (pid 9973): Server for display :0 can't be started.

Fri May 27 16:10:54 2011
error (pid 10087): Hung in XOpenDisplay(10.224.160.75:6539) attempt #0, aborting.

Fri May 27 16:10:54 2011
error (pid 10087): Server open attempt #0 failed for 10.224.160.75:6539, giving up

请大家帮忙，谢谢