How to re-enable a confirm window?

[V@no]

Hi!
When XnView first time opens .pps files (PowerPoint) with multiple images inside, it shows a dialog window that tells to use page up/down keys to view other images in this file. But ones you check "dont show this anymore" checkbox it never shows that confirmation dialog box anymore.
I've went through all the settings but could not find where I can re-enable that confirm window...
Can someone point me to the right direction, please?

Thank you.

[marsh]

Hi!
When XnView first time opens .pps files (PowerPoint) with multiple images inside, it shows a dialog window that tells to use page up/down keys to view other images in this file. But ones you check "dont show this anymore" checkbox it never shows that confirmation dialog box anymore.
I've went through all the settings but could not find where I can re-enable that confirm window...
Can someone point me to the right direction, please?

Thank you.

Completely deleting the following line from xnview.ini will reset all "dont show this anymore" settings (there is no option):
ShowAgain=#########

[V@no]

Thank you!

[helmut]

Completely deleting the following line from xnview.ini will reset all "dont show this anymore" settings (there is no option):
ShowAgain=#########

Thank you, marsh, for this correct and comprehensive answer.