I recently started using a Logitech S510 wireless mouse and keyboard with my macbook. I have the receiver plugged directly into the macbooks usb port, and have my printer (HP F4180) plugged into the other port. I noticed today that while I'm printing, my mouse gets really stuttery and sometimes completely unresponsive. Since it only happens while I'm printing, I'm wondering if it's some kind of usb conflict. Does anyone have any suggestions as to what could be the problem and how to fix it?