So I came home and cannot seem to get a response from the head unit. I added UV to deal with the ich and algae while I was gone and I had programmed it before I left. The pump is supposed to be on 24/7 but it was not on. I tried to check my programming but could not get off of the home page. I turned the power off both through the power strips and then even unplugged the head until from the SL1 - still no response. I have started a thread on DA but sometimes they take forever. The only other idea I have is to reload the software. Anyone??? Oh -- everything is running fine I just cannot change anything.