Mice not working properly in Mac os x 10.6.8

[jared248371]

I have mac osx 10.6.8 installed on a dell xps 8300. I have a R.A.T 5 Mouse, and for some reason it doesn't do anything when i drag it over something clickable, unless I click it once first. When I play any games. I can't look around unless Im pressing either the left click button or right click button. When im in a game, and im in the setting area. I have to click on the setting I want at least 10 times for it to work. I downloaded the drivers, and it works properly on applications I don't need to hover my mouse over for. I tried another mouse, and I have the same problem. Please help?my main concern is not being able to look around in games without holding one of the buttons down.