I am running VFP 5.0 with visual studio service pack 3 - yes I have a HP LaserJet 4 plus as my default networked printer. Any division by 0 causes VFP to die without any explanation. it took me a while to figure out as the 0 / 0 calculation is not normally going to occur - I'll have to just stick some code in to catch this myself I guess - unless anyone knows of a fix/upgrade?

Thanks for you're help - I thought my PC had it in for me.

Martin