Enable Function Keys on OSX 10.6.8 with Razer Anansi

After installing the Razer Anansi OSX driver (1.01) from Razer, it appears my function keys have reverted to the default "special" keys. For example, F1 and F2 control the brightness of the screen instead of registering as F1 and F2.

I've tried editing the keyboard preferences (the tickbox which says "Use all F1, F2, etc. keys as standard function keys") but it does not appear to have any effect. I've also tried disabling the mapping in the Razer driver program, but that, too, does not appear to have an effect.

I would like to keep the Razer Anansi driver installed, but I would like my function keys to be the standard ones instead of the special MBP ones.

Press and hold the Fn key and press the gaming key (F13), this will put it in 'gaming mode' (the G light should light up on the top right of the keyboard. All the F keys will then work as F keys. Press the same keys to take it back out of 'gaming mode' if you want the media keys back.