I have entered Probe AC. I am able to call up voltage and current waveforms but when I try to plot either Inoise or Onoise, nothing happens. The plot window that is currently visible stays the same.
When probing for either Inoise or Onoise, clear all other waveforms from the plot window first. The network equations are structured differently for noise so it is not possible to plot noise variables with other types of variables such as voltage and current.