In this test, by using keyPress( KeyEvent.keyCode ), I can not write characters on the textField on both screens on windows98. It works fine on solaris.
After bug 4288230 being fixed, mouse can be moved to the second screen by using robot, mousePress() works fine too. But KeyPress() still has problem.

Robot does not work well in windows2000, mouseClick can not click to the right position so that it can not click to the right components. keyPress does not work neither for win2000.