no scratch - hercules 4-mx + mac (lion) + traktor pro 2

hello,

i cant do scratches (actually, i would like to do "backspin effect") in my hercules 4-mx running traktor pro 2 + macbook pro. off course, the scratch button is turned on in the hercules and i have .tsi file updated from hercules website.

i heard something over the internet that 4-mx, .tsi files for mac dont have this function mapped yet? its true?

previously running the 4-mx in pc+w7 the scratch effect (pressing and moving the jogwheels) ran normally, so i made backspins easily from there.

tanxs for supporting me guys, cheers!