When I create activity on TSRE, the activity disappear

[louisparkbs]

When I create and save an activity with TSRE, save the files for act, srv, and trf. After that, when I open Open Rails, I can't see the activity I've just created. If search for a path in a file search by file name, also I can't see it anywhere.
And if I go back to TSRE, the activity file, the traffic file, and the timetable that I made earlier are gone.
The same problem occurs with the consist too.
What's the problem?

[eric]

Try running TSRE as administrator. If you installed TSRE or your MSTS/ORTS content into one of the Windows protected directories, you might not have rights to create or save files.