("bomb message") while running Pixie Scheme in combination with one or more desk accessories.
SOLUTION(?): Try again with fewer desk accessories, or with none. There may not be enough memory for everything. Pixie Scheme will offer an explanation when out of memory, but I cannot control what desk accessories do. Alternatively, a desk accessory may somehow conflict with Pixie Scheme.
Also, browse through the "Elementary Debugging" section herein.