Razer diamondback 3G problem

[Marshstyles]

Hi,

ive had my razer diamondback 3g since it came out and have never used the 'on the fly sensitivty' button.

however, now i play bad company 2 and use a low sens while im on foot, but its just too slow when in a chopper or a tank.

i cant seem to get it to work.

does anyone have any ideas or had the same problem?

im running windows 7

cheers

Edit:

Sorry all ive just figured it out, so for the benifit of anyone searching the web for the answer here it is....

click advance sensitivity (bottom of the numbers in the razer control panel) and turn on 'master sensitivty control' and apply

now hold down the 'on the fly' button and wheel scroll up or down