While working with WATIR I encountered a small bug that I would like to post the solution to here.  It involves setting a file path in a fileField, which does not get set.  I have only found this error in 1.5.1 and have not checked if it exists in previous versions.  From what I have found, this development gem is very stable, with this being one of the first and only bugs that I have noticed.

I ran into an issue with the fileField.set method not setting the text I passed into it.  I found that the issue was the call inside of winClicker.rb to the set_text method from the setComboBoxText method.

The solution is to make your setComboBoxText method inside winClicker.rb look like the following:

def setComboBoxText(hWnd , textToSet)
      send_message = @User32['SendMessage',  'ILISS']  
      r  ,rs  = send_message.call(hWnd , WM_SETTEXT ,'',textToSet) 
end 

this may also be true for the setTextBoxText method.