Srry... I was rushing off to dinner when I typed that...
Firstly, I never had system restore on to begin with. So, when I went into the System Protection window to turn it on, and create a restore point*, it gave me the following error message:
The Restore point could not be created for the following reason:
Insufficient storage available to create either the shadow copy storage file or other shadow copy data (0x8004321F)