converting to X5

[Authorgirl]

I have just used X5 to open an HTML project that was created in X3. All seemed well until I compiled it in X5. When it has finished and I click 'View result' nothing happens. When I go to the chm in the project folder and open it, only the start topic is displayed with no Nav pane.
Any ideas?
Are the 2 versions of RoboHelp not compatible?

[RoboColum_n_]

They certainly are compatible but maybe there is something in the X3 project that is causing X5 to choke. Assuming your window settings are all set correctly, try created a new project and importing a few of the topics and see if that makes a difference.