Hi, I don't know if this is the right place for this post. No doubt it will be moved if it isn't....

I recently wrote a program which involved a lot of number crunching (thousands of operations) - but NO random numbers...

On an machine running XP I get one answer - on a machine running Vista I get a slightly different answer.

Anyone any ideas? Is there a difference between Vista and XP in the way they deal with numbers?

Thanks.