lost "Preview" as default image viewer
I'm running an updated version of El Capitan on
a 6-year old iMac. Lots of RAM & disk space.
My file associations keep changing on every bootup,
so instead of "Preview" opening my desktop JPG's,
Adobe Illustrator attempts to boot up, which is long
and laborious (and unwanted).
I change the default app back to Preview (in the
images's "info" pane), but on the next bootup
it's back to Illustrator.
Thanks for any suggestions on how to stop this
from happening.
OS X El Capitan (10.11.6)