download jde 4.3 latest sdk after installation simply run mds studio(start->all programs->research and motion->blackberry jde 4.3.0->mds) ..now you continue your application in netbeans...there ll be no symptoms for error all the best..

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S.VinothkumaR
Behind me is infinite power,
Before me is Endless Possibility,
Around me is Boundless Opportunity,
Why should I fear!