I am having a problem with my tower of power when running it off the computer. It gets errors and freezes up or sometimes it starts the brew session over when it shouldn't. The unit sometimes has problems on its own but almost always when connected to my laptop. Now its at the point it can't connecte to my computer. This never was a problem for for the first 18 months or so. The computer and unit would flash when the burner was getting ignited so I didn't know if the cable itself was damaged. I did notice the plug end that goes into the back of the tower of power itself appears to have the white wire not connected to the plug. If anybody has this cable could you look and see if your white wire appears to be connected to the plastic plug or is this and extra wire. I am just trying to narrow down the causes as to the cable or computer. I would look at Northern Brewer or Midwest, but they don't actually carry the cable in the store itself. Thanks in advance for your help.