Changing Display Properties in NT

A user changed the display properties on WinNt4.0 Workstation and now the property window is too big to resize back to regular size. When I go and attempt to change the display property to small font (small icon) I cannot see to select okay. Is there a way to resize the window so that I can see it and select okay – or is there a place in regedit that I can change under local machine. I’ve looked everywhere and can’t find a solution – can’t run my application if the window’s too big. Any suggestions is appreciated.