anybody has any problems with installing and printing with canon lbp6650dn?

hi,

i bought a new i-sensys lbp6650dn and i am trying to make it work with my macbook 10.5.8. the installation cd that comes with it does not work with mac. i downloaded the latest drivers from canon's website, and could add the printer to my list.

computer's connected to the printer with USB. both the computer and the printer show no error, but whenever i try to print a document it starts printing jumbld letters and numbers that look like programme codes. moreover, it prints around 20 pages for a 1-page document. does anybody know what the problem might be? i am not sure whether there is something wrong with the computer's settings or the printer's. it's the first time installing a printer is giving me such a hard time. any help would be much appreciated.

thanks!