If you downloaded the Presets---Recent News.TXT file into the ..../experts/files folder, then the parameters you enter into this file will override those you enter into MT4's dialog window (when you attach the indicator).
If this is what is causing your problem, here are 3 possible solutions:
1. Set the ShowUpcomingXEvents parameter in the Presets---Recent News.TXT file to the number of events you want displayed. Then save the file and jump between timeframes on your MT4 chart to refresh the indicator; OR
2. Type 'X' (or the name of any file that doesn't exist in the ..../experts/files folder) as the ParameterFile entry, when you attach the indicator. If it can't find the file, it uses the settings you enter into the dialog window; OR
3. Delete or rename the Presets---Recent News.TXT file (again, so it can't find the file).
The only other possibility I can think of is that, if there are no more upcoming news events for the current week (a week goes from Sunday to Saturday), obviously none will display.
Hope this helps - if not, please post again and I'll try to think of something else.
David