ReadyNAS running multiple instances?

Since a while I've been having problems with my squeezebox radio starting to lag and pause, probably buffering. When I check my readynas, it now looks like there are multiple instances of de squeezeboxserver running:

Nassie:~# ps aux | grep squeeze
root 2079 0.0 0.8 3504 1920 ? S Aug02 0:00 /bin/bash /usr/sbin/squeezeboxserver_safe /usr/sbin/squeezeboxserver --prefsdir /c/.squeezeboxserver/prefs --logdir /c/.squeezeboxserver/log --cachedir /c/.squeezeboxserver/cache
root 2082 1.2 48.2 137136 109248 ? S Aug02 16:11 /usr/bin/perl /usr/sbin/squeezeboxserver --prefsdir /c/.squeezeboxserver/prefs --logdir /c/.squeezeboxserver/log --cachedir /c/.squeezeboxserver/cache
root 2784 0.0 48.2 137136 109248 ? S Aug02 0:00 /usr/bin/perl /usr/sbin/squeezeboxserver --prefsdir /c/.squeezeboxserver/prefs --logdir /c/.squeezeboxserver/log --cachedir /c/.squeezeboxserver/cache
root 2785 0.0 48.2 137136 109248 ? S Aug02 0:00 /usr/bin/perl /usr/sbin/squeezeboxserver --prefsdir /c/.squeezeboxserver/prefs --logdir /c/.squeezeboxserver/log --cachedir /c/.squeezeboxserver/cache
root 2786 0.0 48.2 137136 109248 ? S Aug02 0:00 /usr/bin/perl /usr/sbin/squeezeboxserver --prefsdir /c/.squeezeboxserver/prefs --logdir /c/.squeezeboxserver/log --cachedir /c/.squeezeboxserver/cache
root 4982 0.0 0.5 4256 1200 pts/0 S+ 13:10 0:00 grep squeeze

If I do a stop / start in the ReadyNAS Admin, things go back to normal, and my Squeezebox radio will play fine:

Nassie:~# ps aux | grep squeeze
root 5072 0.2 0.8 3504 1920 ? SN 13:19 0:00 /bin/bash /usr/sbin/squeezeboxserver_safe /usr/sbin/squeezeboxserver --prefsdir /c/.squeezeboxserver/prefs --logdir /c/.squeezeboxserver/log --cachedir /c/.squeezeboxserver/cache
root 5078 84.7 11.5 38560 26144 ? RN 13:19 0:15 /usr/bin/perl /usr/sbin/squeezeboxserver --prefsdir /c/.squeezeboxserver/prefs --logdir /c/.squeezeboxserver/log --cachedir /c/.squeezeboxserver/cache
root 5085 0.0 0.5 4256 1200 pts/0 S+ 13:19 0:00 grep squeeze

But after a few hours, more instances start to appear, and I'm back in trouble. I did a cleanup, a complete reinstall, but nothing seems to work. Anybody have any ideas?