Dear Paul, That is the problem, it didn't. What should I do? Thanks. *Best regards,* *Isobel French* *Academic Coordinator and Research Officer* *Neurosurgery Research Unit, Division of Neurosurgery* *Department of Surgery, Faculty of Medicine* *University Malaya* *Suite 15 T8-4a * *Level 4, Menara Timur* *University of Malaya Medical Center* *016-7937605* *03-79493138* On Tue, Jan 5, 2016 at 5:48 PM, paul mccarthy <[log in to unmask]> wrote: > Hi Isobel, > > The modulation option should become available when you set 'Display as" to > "RGB". > > Cheers, > > Paul > > On 5 January 2016 at 07:11, Isobel French <[log in to unmask]> wrote: > >> HI, >> >> I can't seem to change the modulation in fslview in the overlay >> information dialog window >> in DTI display options. >> >> The tab is unable to be clicked. Are there any settings I might have >> missed? >> >> Thanks >> >> >> *Best regards,* >> >> *Isobel French* >> >> >