Ok, this is driving me insane. I waited 2 months for a Raspberry Pi, and the only thing I can do is look at the thing. I absolutely can not get my Raspberry Pi to boot! I prepared an SD card, attempted to boot it up, the PWR light turned solid red, but the OK light just flashed in a completely random pattern and the LNK light flickered on for about 1ms one time. So, I went out and bought a brand new SD card that was on the working SD cards list thinking that was the problem. I used the "dd" procedure on a mac, and according to the mac, everything went according to plan, but not according to my pi. Same thing as before, PWR light solid red, OK light flashes randomly and very rapidly, sometimes staying solid for up to 5 seconds, and then going back to rapid flickering. I checked the SD card pins on the PI, the power source, everything. I even tried powering the pi with the 5V rated USB hub that I bought, powering the pi through the its usb port, same exact thing. What am I doing wrong? I don't see a case where the OK light flashes randomly in the troubleshooting section of the wiki. Is it possible I have a defective Pi? Any help would be appreciated. Thanks in advance.