I currently have a set up with the FP-1601, (2) FP-TC-120, and a FP-AIO-610 modules. We are upgrading to a new computer so I copied the vi and the iak files from the current computer. For some reason when the vi is run on the new computer I get readings from everything except the FP-AIO-610. The program runs just as it should on the older computer. The operating systems are the same and I'm using LV version 6.1. Any suggestions?....Thanks.