Ihave a 700 mhz 15" iMac LCD. On the ports in the back, I've attached my eyeTV, my Soundsticks, and my keyboard. For some reason, my eyeTV will only work if plugged into the leftmost USB port, and the Soundsticks will only work if plugged into the rightmost port. I'll be playing something in itunes, or watchint TV with iTV, and suddenly, there will be no sound. I'll try to play a song on iTunes, and it'll allow me to select the song (it shows up as the currently playing song), but the counter doesn't move (the song doesn't actually play) and the system volume turns off for all my apps. Logging back indoesn't solve it. The only two things that are are a full restart, or (the easier version) unplugging the USB cable from my eyeTV, and replugging it. When I do this, eyeTV, iTunes, and AIM all unexpectedly quit. I already reset my PRAM, but it happenned again today. Help!