Hi Tom
Those "Don't show..." dialogs vary. Consequently, how to tell
you exactly the steps to turn one back on will be a bit difficult
if we aren't 100% sure exactly which dialog it was. However, all
hope is not lost.
Roll up your sleeves and prepare for some Windows Registry
editing!
Click
here to visit fellow Adobe Community Expert Peter Grainge's
site and scroll down until you see
Tip 13. Follow the steps outlined there and if it doesn't
fix your issue, come back and we'll do more digging. (I do have a
few other tricks up my sleeve for this)
Sincerely... Rick