if you have kde, use the comamnd ctrl+escape to see what prosess are running and look for arts or an other one
EDIT: fixed. just had to add "ln -s /tmp/.esd-1000 /tmp/.esd" to your session startup (preferences/sessions/startup programs) but this is for me it might work for anyone having same problem but I am not sure as I installed wmv codecs and various divx etc codecs... hope it can help someone with the same problem for future reference though. cheers for all suggestions and help people.