Visual Paradigm can't start

I have downloaded the Visual Paradigm,and installed it on win 7.but when I start it ,it just can’t be open ,nothing happend.
the vp.log file is as follows:
[2012/05/14 14:58:28] [message] [Mon May 14 14:58:28 CST 2012]: Start Visual Paradigm for UML Enterprise Edition [VP-UML EE]: 9.0 (20120418)
[2012/05/14 14:58:28] [message] Operating system: Windows 7 6.1 running on x86
[2012/05/14 14:58:28] [message] Java VM: 1.6.0_20 Java HotSpot™ Client VM, vendor 16.3-b01 Sun Microsystems Inc.
[2012/05/14 14:58:28] [message] User: Administrator, language: zh
[2012/05/14 14:58:31] [warning] java.lang.reflect.InvocationTargetException
at java.awt.EventQueue.invokeAndWait(Unknown Source)
at javax.swing.SwingUtilities.invokeAndWait(Unknown Source)
at v.zke.b(:174)
at v.zke.a(:43)
at Source)
Caused by: java.lang.NullPointerException
at$ Source)
at$ Source)
at$ComInvoker.invoke(Unknown Source)
at Source)
at Source)
at Source)
at$300(Unknown Source)
at$ Source)
at$ Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$ Source)
at$ComInvoker$ Source)
… 1 more

Can you try right click on the shortcut and select Run as Administrator and see is it work?

Best regards,
Rain Wong