netbeans 6.0.1 not run

[cuongvt]

Hi all!

full explanation:
FreeBSD 7.0-RELEASE (i386)
uid=1001(mak) gid=0(wheel) groups=0(wheel),69(network)

installed:
jdk-1.6.0.3p4_1
diablo-jdk-1.5.0.07.01_10
javavmwrapper-2.3.2

I'm using zsh so I set JAVA_HOME and PATH of java into in my .zshrc.
java -version:
java 16 jdku3p1 etc etc

Then I insralled netbeans from ports, firstly it warned:
JAVA_HOME should not be defined.

So i removed JAVA_HOME and PATH of java into in my .zshrc, reboot and reinstalled netbeans.
Installation went fine.

When I try run netbeans:
mak@lo0:~>netbeans
XIO: fatal IO error 0 (Unknown error: 0) on X server ":0.0"
after 0 requests (0 known processed) with 0 events remaining.

Any ideas?
P/S:All pkgs were installed via ports*