I am using the first three channels of my GIU. The fourth channel is not used. I keep getting a Group 0 created in my Lighting application and the following appears in the project documentation: Group - Group 0 [ top ] Address: 0 (</body>) Description: Inputs: General Input Unit - PC_GIM something something something something something something something something something something something something something something something something something something something something something something something something something something something something something Outputs: Other: I have reset the GIU and re-entered the first three channels to ensure that there is nothing 'hidden'. Any ideas what would cause this? Thanks