Screen resized and got smaller, how to fix?

[Fivestar]

A few moments ago i inadvertently pressed some keys (don't even know which) and the entire resolution increased making my screen almost unreadable. What keys do i need to press to return to the default resolution? This is on a GOG version of Civ Complete.

 

[f1rpo]

If you've been playing with the BtS expansion, the resolution can be set through My Games\Beyond the Sword\CivilizationIV.ini as ScreenWidth and ScreenHeight. I'd suggest to use your desktop resolution. Within the game app, the resolution can be set via the Options screen under "Advanced" on the opening menu or, within a running game, via Ctrl+O or Esc, "Options". On the "Graphics" tab, there's a drop-down menu "Resolution." It's strange though that some key press is supposed to have changed the reolution. I guess some sequence of Ctrl+O, Tab and arrow keys or the mouse wheel could do the trick. Perhaps you've toggled the "flying camera" through Ctr+Alt+F. But I think that's normally blocked via CivilizationIV.ini (AllowFlying). Maybe worth a try. Alt+F (satellite/ top-down view) could also be pressed by accident, but wouldn't make the screen nearly unreadable. A screenshot should make the matter clearer.

 

[Deaf Metal]

Might have used the windows magnifier (winkey and + or - for me). Can get really zoomed in. Or hit a hotkey the graphics card software uses to zoom or change resolution. Or maybe it wasn't a keypress but accidentally moved the fov slider.