O'Rourke

What's wrong with this picture?

I just got my awesome new 1.5 TB drive, put it in an external USB case, and connected it to the Mac I use as a server in the office upstairs. Downloaded Silverkeeper, a backup program for Mac, and tried to take my first backup snapshot. Got the following error message: 

<quote>Sorry: The Destination volume you have chosen is too small to hold the required backup data. You will nee to go back and make another choice</quote>

My Mac has an 80 GB drive. My new external drive is 1500GB. If my drive was full, I could make a copy once a week and not run out of space until Mackenzie starts Kindergarden next fall.

I'm sure it's an easy fix. I haven't even consulted google yet. But still...