CR 10.2 - Trying to prevent drill-down of SubReport?

I have a subreport in a sectio of my main report. I wish to prevent the subreport from being drilled down. I basically want the subreport to show if there IS data, however, if there is data...I don't want the user to be able to drill down on the subreport. I don't know what combination of settings I need to set in order to prevent this. I've tried the obvious ones and it still doesn't work right. Any ideas?

Thanks,