Product review (1 stars): Beware, XP users
I have Windows XP SP3, and I have yet to get the original TH10 or replacements to work.  I was on the line with customer service today after receiving a replacement unit.  The replacement unit acts exactly like the unit that I sent back: flashing green-yellow-green and then nothing.  Supposedly, this is ok and the problem, according to support, is that the device driver won't load on some systems.  After crashing my XP 4-5 times, I am giving up.  The best alternative that the tech could propose was finding a machine that ran Windows 7 or 8.  After reading some of these reviews, I am beginning to wonder.  I have never seen a device manual before that provides _no guidance whatsoever_ about the system requirements for the device.