Oh God.. I got as far as reading SAS statistical software. I briefly got my hands dirty with that a little over ten years ago and remember thinking at the time how it was the ugliest most bug ridden heap of shit I'd ever had the misfortune of using.<p>Fortunately my time using it was on the order of a week or so.. it doesn't at all surprise me that the bug described was only (recently?) discovered.<p>The vendor of that product (I can't remember who that is) clearly had a serious quality control problem ten or so years ago -- purely going on SAS -- and it sounds like they still do...