My computer would not wake up by clicking the mouse. I restarted with the power button and received a message that my computer name was changed in network sharing ? have I been hacked into or what ? 27" Imac 2.66 Ghz Intel core i5 8 GB 1067 MHz DDR3 Windows 7 in a bootcamp partition. Intego dual virus protection Mac + windows with fire wall on. On a network with my wife's Dell laptop with Windows Vista and MacAfee virus protection. Sharing the printer and internet access only thru Airport extreme. I was downloading Windows Vista service pac 2 to the laptop about this same time.I am a old guy not up to speed on computers. This name change with out any input from us made me suspicious. PS I LOVE MY NEW IMAC.