Sorry for ask,how to esc fullscreen

hello every.
i use vvvv_33beta12.
one day,i set vvvv for fullscreen,and then i cant esc,
so i shut down th computer
now,when i open vvvv,it is start fullscreen.
i cant work with vvvv,because it is always fullscreen
who can help me,esc the fullscreen.
thank you very mush and sorry for my poor english,aha

did you try alt+enter ? work on all vvvv windows.

thank you very
juat now i try alt+enter as before,no use
but when i click window side,and try alt+enter
esc fullscreen
you are good!thank you anachronik.