I noticed that when after booting up and then running Amarok or Banshee that eventually the computer slows down so much that whenI type something eg in Fbook that there is a significant delay (seconds) between typing on the kb before it appears on the screen
Also changing between windows/apps takes forever.
I ran TOP to see which processes are running and saw that KNIX takes between 95-98% of the processor ALL THE TIME
Then when I kill it things go back to normal
I dont knwo what to do
Also I dont know what further info you need