I just received my doser in this past week and started to hook it up today. I had a hard time just trying to get the time set and I still can't set the date. I feel like the biggest looser on the face of the earth right about now. When I go to set the date the year will set and the month will set but when I key in the day the cursor moves and changes the month. I have tried it several times and the same thing happens. I'm starting to think this wasn't a good idea to dump this much money and I can't even set the date. How dependable is this unit going to be and should I trust it to add chemicals to a 120 gallon frag tank full of my corals.