I just wanted to report this in case someone else runs into the same problem.

* Context:

I'm using an IBM X41 tablet PC. I'm running a program built with processing which allows the user to do things with the mouse.

* Problem:

For some reason if there is a single click with the pen "mousePressed" is not set to true. Using a (real) mouse instead of the pen works fine. Double clicking with the pen, or dragging works fine, too. However, a single click with the pen does not fire a "mousePressed" kind of event.

* Work around:

Adding the following has helped in my case:

public void mouseClicked (MouseEvent me) {
   // do something depending on your program here
}

- elias