I'm getting no response from the touchpad on my MacBook Pro [Penryn, Feb 2008] using the Synaptics Driver.

I've got the Input Device set up in my xorg.conf, including the "SHMConfig" "True" option, yet gsynaptics tells me I still need to add the line.

Am I barking up the wrong tree here? Is there another driver I should be aware of?

Any advice would be greatly appreciated.