help with "fracture tools" addon

so this is most likely some small detail that im missing but when i use fracture tool the shards collide with one another, im using 2.67 on a toshiba satellite laptop, windows xp and running @1.60 ghz, 1.49gb of ram

this is the resulting product

notice how in the first half second the shards expand

please help this is really bothering me

see doc in wiki
and these sites

http://www.directcg.info/how-to-use-fracturetools-inside-blender.html
http://www.directcg.info/uploads/6/9/1/4/6914625/fracturetut.pdf

happy blendering