I was given a choice to choose between the Nokia X6 and the Sony Ericsson Vivaz. I went for the Sony Ericsson Vivaz, and I think that I made a wrong choice. Since whatever applications I am trying to run on the mobile simply fails. Can you all suggest me anything in this regard? I was trying to run the PADDYPOWER mobile application and I found the error. I cannot play any other application on it, so I do not think that there is any problem with the application.