NetWeaver Developer Studio startup problem

Hi,

Successfully installed WAS 6.30.

But while starting NetWeaver Developer Studio , getting the following error message and studio is not started

Sap Netweaver Developer Studio

JVM terminated.Exit Code=1

C:\jdk1.3.1_09\bin\javaw.exe

-Xmx512m

-Xms128m

-XX:PermSize=32m

-XX:MaxPermSize=128m

-XX:NewSize=32m

-XX:MaxNewSize=128m

-XX:NewRatio=2

-cp C:\ProgramFiles\SAP\JDT\eclipse\SapStartup.jar com.sap.ide.eclipse.startup.Main

-os win32

-ws win32

-arch x86

-feature com.sap.java.ide

-showsplash C:\ProgramFiles\SAP\JDT\eclipse\SapIde.exe

-showsplash 600

Any help on this is greatly appreciated

Thanks