MARKERS ON GRAPH PAPER MAKER SOFTWARE

WHEN I CHOOSE "ADD MARKERS", ABSOLUTELY NOTHING HAPPENS. THE MANUAL SAYS , "I WILL BE PROMPTED FOR A TEXT FILE". I HAVE NEVER SEEN THIS MESSAGE. MY OPERATING SYSTEM IS MAC, OS X 10.5.7. ANY IDEAS..... THANKS

You will be asked to specify the markers file when you click the Generate button, to produce the graph.

THKS FOR YOUR HELP. IT WORKS IN STD GRAPH BUT NOTHING HAPPENS WHEN I MAKE A PROBABILITY GRAPH...

Thanks for the clarification, I'll take a look here and see if I can reproduce the problem, if so I'll release an update with the bug fix.