On the main screen, click on the preferences icon (3rd from the left, down the bottom-right hand corner of the screen) and choose "modify device profile"... a browser window will pop up; log in to the UD site, and choose "profiles" from the menu on the left. On the screen that appears, click a profile name to edit its properties (probably "Default", unless you've altered this before)
You can assign up to 10Gb, but since it uses some of this space for storage, you will never actually get 200% at the end of a rusults processing... mine is currently at 196 for storage.
