[{HVY-E}Jinxx]

Rus,

I know this is going to sound like a lot of work, but try reinstalling the game and use either HSFX 4.x or UP 2.x

I won't get into a debate about which is better, but I use HSFX 4.11. You'll get a good proper install with all the things you've already got in one package. Cannon's map is included in both packs.