Thanks for your quick reply.
I fear I am still doing something wrong.
I am trying to point the backups to a directory named MoodleBack on the F:\ drive of my server.
I t ried it both with the F upper and lower case.
The backup procedure seems to run, but the backup goes to the default location no matter how I point it.
I verified full control permissions for the web server account on the directory, in fact it has full control for everyone until I can fix my problem.
I am logged on with admin privilege, and making the settings in moodleroot/admin/backup settings (where you choose the days and set the path).
I must be doing some simple stupid thing, but I cannot seem to find the problem.
Any help you can give me will be most appreciated.