Stuff connected to USB on my PC: Keyboard (G15) Mouse (MX518) external HD (WD Passport) Those function perfectly and I have not had any form of error. However, my iPhone and camera (Casio Exilim) both have a very unstable connection - they will always connect and be recognized fine, but most of the time as soon as the connection is used it will disconnect in the middle of the process. The camera usually locks up and has to be reset by removing the battery. Does anyone know how to fix it? I'm running an i7 system on an X58 chipset (Asus P6T Deluxe).