Well, to save up some space I decided to uninstall armada 2 but FO still works when the cd is in the drive. Afterwards I started to experience some problems in game, sometimes it takes 3,4 or mroe clicks to select or move a ship/building. Now, this is really annoying and it's very frustrating to play this way. What should I do? How can I increase mouse senstivity too, I've tried playing with the settings. I tried using other mouses but still experience the same problem (I don't have this problem outside the game).

thats not a mouse sensitivity problem
what it could be is -
1)your mouse is old and must be replaced
2) fleetops needs to be uninstalled then reinstalled
3)your computer is old and needs to be replaced