We had a heatmiser tft controller installed as new in early 2012 being version 1.3. It constantly broke down. HM advised to upgrade the software to the latest version,,3.0 easy they said just download the software and plug in to laptop. This action blew the controller. We had to order a new one - this time version 3.0. ..Why so many versions between early 2012 and now?? Then having ordered and paid for the new controller HM sent 5 ground probes instead...Why?? Has anyone at HM read, as a consumer, the instructions that come with the controller - labelled as version 1. Some diagrams might have been helpful?? and as for the very poor instructions for the download and upgrade....Well, think again!! Perhaps somebody at HM might like to come back to me on this?