I've installed bootcamp on my iMac but the trackpad touch-to-click or multi-gesture functionality doesn't work. The odd thing is that the functionality works for a few moments after I've logged in, but it doesn't work once the account is fully logged in I've tried to open the bootcamp manager, but it won't open. Clicking on it does absolutely nothing. I've tried to create a non-administration account (as I've heard that bootcamp manager opens up in that) but no joy. Can anyone suggest an approach that doesn't involve re-installing the whole OS again?