centos 安装openoffice4.0.0出现异常Can't open display

Fatal server error:
Cannot establish any listening sockets - Make sure an X server isn't already running
Maximum number of clients reachedMaximum number of clients reached/opt/openoffice4/program/soffice.bin X11 error: Can't open display:
   Set DISPLAY environment variable, use -display option
   or check permissions of your X-Server
   (See "man X" resp. "man xhost" for details)
Maximum number of clients reachedxhost:  unable to open display "localhost:1"
_XSERVTransSocketINETCreateListener: ...SocketCreateListener() failed
_XSERVTransMakeAllCOTSServerListeners: server already running