Video with the format *. avi, *. wmv plays as a slide show

[Gulever76]

Hello!

I do not speak English well, I'm sorry in advance
I use translate.google

Yesterday I updated it to version Xnview 0.93 and began to observe the difficulty in playing back files with extension *. avi, *. wmv. Videos with these resolutions are played as a slideshow. Help please solve the problem. Thank!

[xnview]

what do you means 'plays as a slideshow'??