App crash in start up?!

Hi!

I used ADE a lot, but now, he crashes when start up:

Descrição:

  Stopped working

Assinatura do problema:

  Nome do Evento de Problema:          APPCRASH

  Application Name:          DigitalEditions.exe

  Application Version:          2.0.1.0

  Application Timestamp:          51efabb4

  Fault Module Name:          unknown

  Fault Module Version:          0.0.0.0

  Fault Module Timestamp:          00000000

  Exception Code:          c0000096

  Exception Offset:          001ce4cd

  Versão do sistema operacional:          6.1.7601.2.1.0.256.1

  Identificação da Localidade:          1046

I don't understand. I tried to uninstall ans install again, but don't work. What I have to do?