I'm using IrfanView 4.52 x86. (My profile says 4.51 because that's the latest version in the profile list.) I'm using Windows 10 x64 1809. I switched from IV x64 to x86 to solve some previous problem -- or possibly the same one; can't remember.

The problem: I have .wav and .mp3 files that play fine in other players (e.g., VLC). Until today, they played fine in IV too, but now IV plays them silently. I mean, the progress slider does move; IV seems to think it is playing them; but no sound is coming out.

This happened previously. I fixed it, that time, by uninstalling and reinstalling. But that was just a few days ago. I'm hoping not to have to reinstall IV multiple times per week.

Any ideas?