''RE: the window is so big that the OK button slips under Windows 11 system tray...thw window is impossible to resize, nor I can drag it,'' As the bottom of window has gone too far down: Either: Hover over top edge of window to see two headed icon - left click and hold down to grab. then drag downwards maybe to half the height of screen. Then left click and hold down on Top title bar and drag the entire window upwards, so revealing the bottom edge. OR hover over a corner - eg: top left corner to get the diagonal two headed arrow - then left click - hold down to grab and drag in a diagonal down and right direction until top edge is half way down screen. Then left click and hold down on Top title bar and drag the entire window upwards, so revealing the bottom edge.