Occasionally users have told me that spectra they have collected on the Skaggs NMRs do not look as good when they take them back to their own computers. This could be because they did not process their data with optimised parameters. Or, since most users use Mnova, it may be due to real processing differences between Mnova and TopSpin. Here I examine a few spectra processed with both packages to see if there is a real difference between processing with Mnova and TopSpin.