I see a blank screen after I run ETS Viewer! How do I see the questions and tests?

ETS Viewer is a viewer, just like Acrobar Reader. It does not contain any data. You need to use File->Open menu of ETS Viewer and open an ETS file (a file with extension ets) file. You can download ETS  files from the Downloads page. Please download Full version of the ETS file, if you have purchased a Full version or Trial version otherwise.