Ok, I have never noticed this before, but when I refresh a page in firefox, my music playing in iTunes jumps...My music is only encrypted at 160kbps and sometimes 128kbps (yeah I know, I should have my music at better quality, but I ripped in it the days of smaller HDs..). Furthermore, my PC has 768mb RAM so caching the music shouldn't be the problem, it never has been before). It's just really annoying 