I transferred an iTunes library to my 2nd computer (copying the Music iTunes folder). The 2nd computer has a lower screen resolution (20" vs. 24") and now when I open iTunes there the window is too large and the sizing box (right/bottom) is out of reach.
Clicking the green title bar icon does open the mini player rather than adjusting the window to the screen as it does this with other programs.
So how do I get access to the sizing box again?