Can't play midi

[Danilo Horta <horta@hangarnet.com.br>]

When i try to play some mid file as a simple user on kmid, it shows 
"Player :: There are no midi ports !". I can play anything else but 
midi. So i tried "ls -la mid" and it shows

"
lrwxrwxrwx  1 root root      11 2004-08-06 23:05 midi -> /dev/midi00
crw-rw----  1 root audio 14,  2 2004-08-06 23:05 midi00
crw-rw----  1 root audio 14, 18 2004-08-06 23:05 midi01
crw-rw----  1 root audio 14, 34 2004-08-06 23:05 midi02
crw-rw----  1 root audio 14, 50 2004-08-06 23:05 midi03
crw-rw----  1 root audio 35,  1 2004-04-30 00:27 midi1
crw-rw----  1 root audio 35,  2 2004-04-30 00:27 midi2
crw-rw----  1 root audio 35,  3 2004-04-30 00:27 midi3
"

Seens to be correctly, right? any help?

I'm using Debian Testing and i have ALSA configured properly.

thanks in advance