no thumbnails and video playback in preview

[gummiband]

I did also however found an other workaround (a dirty one I admit)...
@gummiband : can you try this on your side and tell me if you have the same behavior ?

i have successfully replicated the behavior: 2 instances of XnView, the first one has no video, the second one has. it does not matter in which folder the displaying instance is, it works with all video formats.