Exiting results in "Division by zero." error dialog and the program will not exit.
After that, selecting Options causes many, many errors.
I had high hopes for Dev-PHP but there appear some more work to do.
I would really like to see this project succeed!
I will still try to use it.
Because I am using Windows, the problems I am having could very well be restricted to just my setup (I am running a fairly old version of XP).
Could you please report some version number (Dev-PHP / XP)?