[negative]

hey,
for some reason when i loaded hidden and dangerous II, my mouse wont work right. i can select items from a menu by holding the cursor over the option and hitting enter (say i want to start a sigleplayer game, i hold the arrow over "new game" and hit enter because it wont work when i try to click it with the mouse"--howeveer the scroll tool on the mouse does work, does anyone know what wrong? thanks