I had been using KM Player as the default player for my .mp3, .flv, and most other video formats. However, something happened recently that doesn't allow me to set it as the default .mp3 player anymore. When I go to "open with" I browse and find the KM Player and select it. However, it doesn't show up onto the player option list. VLC player and WMP are on the list, but I much prefer KM. Note that the KM Player is still the default for many video files and I can play .mp3 files in KM by manually placing them into the playlist. But this is very inconvenient. I have uninstalled and reinstalled twice to no avail. Does anyone have any thoughts? Thanks. Best, Gary