Double click to open group is not working

Double clicks are not working to open groups. Tripple clicks are not working to select objects. I tried assigning buttons to action in settings but it will only let me assign buttons not clicks. I have a brand knew mac book pro. so this is my first go with SU on the new machine.

OMG Just went to mac settings as I remember messing with mouse settings some days ago. lo and behold. The double click speed was turned all the way up so I turned it down to about 50%. Easy fix.