Video Capturing Problem from JMStudio

Hey friends hello......

I have to make an application to capture and save videos from webcam, i have learned somethnig about jmf and want to start coding..

But problems comes before i start, i installed jmf, set all the path and Classpaths as given in its README file, restarts PC and to take as a demo i stated the JMStudio.......

Problem starts now and JMStudio shows me a message that "Capture device cannot be initiliazed", now after somtime i restarted the PC start JMStudio again now this it doesn't show me that error message, instead it goes in like a deadlock state and its panel goes blank white color and it is not showing me any capture....... :(
Attachment 1601

What can i do now??? Please Please suggest me, help me, guide me........