The following message is displayed when capturing images in Spruzzle:
The capture failed. Please check that the touch mat is securely connected and that Sprout is calibrated.

After clicking OK, the following message appears
Microsoft Windows
Close programs to prevent information loss
Your computer is low on memory. Save your files and close these programs
Your computer is low on memory. Save your files and close these programs
Spruzzle

The issue occurs after Spruzzle captures several consecutive images using the downward facing camera.
In the Windows dialog choose "Close program", restart Spruzzle to begin capturing images again.