redandy2: Hi again, my apologies for chewing up so much time with what I feel ought to be such a frustratingly simple task!
Unfotunately a right-click on the Window's bar on the taskbar does not bring up any options at all (have tried it with other windows and got it to work successfully so I'm pretty sure I have understood what you suggested).
Similarly a right-click on the top bar of the window produces no options at all, the cursor is still a game (rather than windows) cursor there, could that be the reason?
Still have not received even a sniff of a reply from GOG so would be very grateful for any further words of wisdom!
Thanks for all your efforts!
Andy
What works for me, if the game is windowed and not in a good spot I hit ALT-TAB both at once and that brings you to your mouse on the desktop. Then move the mouse over the top bar, and it's normal if it disappears just imagine where it should be. Drag the top bar to where you want with the left click, not right click.