currently if you have a fleet selected and you left or right click a city it starts moving the fleet to that city, to select the city you need to click the "close" or click on empty space first. This has messed me up many times as it makes little sense for such a common action as using a city to require that process.
I suggest, following standard game convention, left click be used to select cities and fleets, and only right click be used to order fleets to cities.
Yeah, I can totally see that. I don't really want to require right-clicking anywhere in the game, but I can definitely change things so there's a "move" button next to the city you have to click - and also do the right click thing. :)