Anytime that a new window is opened (such as when sending an email message or opening a pdf) I am unable to click on the new window. I can't click send or click on the scroll bars of the new window. If I attempt to click on the window it clicks on whatever is behind the window instead. If the new window opens with a cursor within it then I am able to type or scroll through with keyboard arrows, but cannot click or use the mouse scroll buttons. I also cannot choose items from drop down menus with the mouse (even in the original window). I must use the keyboard arrows to select any menu options.