I came back to Windows as well. And that was after over 7 years of giving it my best shot for personal use. TBH, is was Vista made me switch to the "Dark Side." As a trader for nearly 3 decades and a fund manager, I need a reliable platform and have yet to see a single trading floor or prop desk anywhere with even a single Mac on it. I build my own machines now and install a clean copy of the OS on them. It's the prebuilt machine with all the preloaded BS on them that give most the bad taste. Before I built my own machines, I learned to simply bring the prebuilt machine home, format the drives and start over. I had much better results that way. As with PhM's experience, I can't remember the last time any of my equipment crashed. Believe me I would remember, because it would have been an incredibly expensive event. The kernel panics and SBBOD's on the Mac were no less annoying.