Hi all, I'm new here.
I'm learning to use SFML and I've got the same problem than you. I just try to compile the 'sound' sample that full SDK provide us and it doesn't work.
I usually speak in Skype and listen my music in Windows Media Player, so it isn't a sound card problem I guess.
I'm using Windows 7, CodeBlocks 12.11 with MinGW and SFML 1.6 because I would prefer 2.0 release isn't Beta version and I don't know if it's stable.
I hope you can help me! =)
Thanks