Message 'Additional formats' with option activated

[helmut]

When trying to open a file in XnView with an unknown format, a message box is displayed telling that the format is not recognized. Also, this message box tells that additional formats can be viewed when activating the option "Display all image file types".

The whole message text:
Format of the file <blubber.jpg> could not be determined.

For display of less common format, the following option is available:
Options>General>[x] Display all image file types


So far, everything fine and o.k.

But:
This message box with the same message text appears regardless whether the option "Display all image file types" is already activated or not. This is misleading since the user thinks that he/she could/should activate the option. I'd suggest to use two message texts instead of one.