Well.. I had the same problem and I did exactly what prenumele post. It worked!!!!
I agreed with Naren. I won´t delete any shared file in the future..
Thanks for your brilliant reply!

I have been struggling to install this Cambridge Advanced Learner's dictionary since I encountered this problem several day back. I did exactly what you told and the software has got life!
For the benefit of others, I can suggest when somebody is uninstalling any voice related software be careful when saying 'Yes' or 'No' while uninstalling for the shared files if any. This is the mistake I did by overseeing the prompt when uninstalling some Piano software...which perhaps might have deleted these shared files!
Thanks for listening to me.
Cheers,
Naren