Matlab Linux can not show command window

After installing Matlab r2007a on my TA computer, one weird problem occurred. It seems that the command window can not be displayed, only a blank window. Anything else seems to be fine, coz when I click start, I can run simulink and so on.

In the command line, the error is:

Locking assertion failure. Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb558d767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x31) [0xb558d8b1]
#2 /usr/lib/libX11.so.6(_XReply+0xfd) [0xb591e1bd]
#3 /usr/local/mathworks/sys/java/jre/glnx86/jre1.6.0/lib/i386/xawt/libmawt.so [0xaef5122e]
......

export MATLAB_JAVA=/usr/lib/jvm/java-6-sun-1.6.0.06/jre

then everything goes well again...

Just remember to modify the version of java when updated...