Logitec G25 shifter

[F_Slim]

Hi there.

I have a problem using the shifter in VDrift.
I can assign the gears in the options-menu, but it doesn't work in the game. (When I shift into first gear, the car stay in neutral).
I tried to edit the controls-file manually, but it had no effekt.
Here's what it looks like:

first_gear joy 0 button 8 false true
second_gear joy 0 button 9 false true
third_gear joy 0 button 10 false true
fourth_gear joy 0 button 11 false true
fifth_gear joy 0 button 12 false true
sixth_gear joy 0 button 13 false true
reverse joy 0 button 14 false true

Any ideas?
Shifting up and down using a shift-up/shift-down button is working fine by the way. I also tried not to assign these, in case that might be the problem but it didn't help either.

Any ideas?