Ah, I think I know what this is... The game is starting in the center of the ui, and all 4 default corners are off screen.
If you have a 'windows' button, you should be able to;
windows+UpArrow
or
windows+RightArrow
To force the ui to fit the screen. I tried it on my TV which has a smallish screen.
Alternatively, can try
alt+tab to minimize the game, and then,
right-click on an empty space on the sidebar and choose 'cascade windows'.
Once you have a reasonably visible ui, can choose your ship, ally ships, enemy ships, then the environment (empty space, star system) then on the bottom, 'start battle'.
When the game starts, shift-f to go full screen.
spacebar to fire selected weapons
click on screen to turn, or use arrow keys or a,d
impulse slider on the bottom or w,s for speed.
shift+1 to engage/disengage warp drive (enemy should come to you though)
energy panel sliders on the right to allocate "extra" warp power to systems
esc to pause. pause menu has button to poorly organized manual (sorry)
All ui's in game should be draggable. control-s to save arrangement.
Hope this helps.