Software backend: buffer overflow in Clipper.

I'm not sure these values are correct, (actually, they're basically arbitrary) but the current values appear to be too small.

See http://www.mediafire.com/download/tzedi36ts7746ze/beyondgoodandevilfifolog.7z to reproduce overflow.

Not really ready to be pulled without a real justification for the bounds, but I don't want to forget about this.