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This isn't distro-specific, it's typical mplayer. If I associate mplayer (or kmplayer) with mp3 files, then doubleclick one when another mp3 is already playing, mplayer will try to open again.
The mp3 plays just fine, it's just that I see a window trying to open in the taskbar, and then failing. Right-clicking on a file and telling it to play in (K)mplayer works just fine, it's double-clicking that doesn't.
Keep it Simple, Sexy
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