Trying to get a post out today that will help.  It is a screen resolution issue.  Click View and change from 640X480 in DBA to the Medium size.  Exit DBA and come back in.  The buttons will be back but the screen may be too big.  On some screens, changing back to small fixed the screen size but kept the buttons, don't ask me why.  In any event, the post coming out today or tomorrow should help.