PTP to MTP switch problem topic

I need some help. I was trying to put the Cyanogen custom rom on my Samsung Galaxy Note N7000 using the CM Installer. It is all simple, but I keep getting the message "we couldn't talk to your phone", so I gave up. In the steps of getting it, the program said to switch from MTP mode to PTP so I did it. And now that I backed out, I cannot connect to my PC because it is stuck in this PTP mode and I don't know how to switch back from PTP to MTP. If anyone knows how to do that, or help me follow trough my procedure of installing the Cyanogenmod to my phone I would be very thankful.