online poker: is it statistically fair?

hello gents. just wondering if some one could tell me of any threads that have a general discussion on online holdem and the unbelievable bad beats and wins that occur. My main question is are the calculators/predictors/dealer programmes used within most online poker sites fair and use truely reliable, in probability terms, software?
And if not, are these problems intrinsically unsolvable.
hope that makes sense and hope its neither to basic or too general a question.