I think its the blue light from the monitor's eye. My friend was flying around while I was setting it up. But I honestly couldn't say for sure.
Avalanche ice caves. But I decided to go in as deep and dark as possible and just use a floating bridge to stand on.
try uploading to tinypic.com instead of photobucket. TinyPic has no registration and your pic is hosted for ever. When you choose your file to upload there is a scroll box that says resize and lists some basic sizes you can resize it to.