How do I replace the drive belt on my Flymo Turbo Compact 380?

I am trying to replace the drive belt on my Flymo Turbo Compact 380, but am having a problem getting the motor out. I've taken out all the screws I can see but there seems to be one last (unknown & unseen) thing that is holding the motor to the main body! Can some kind person please let me into the secret? Ta.