Zipp,
Good of you to ask.
I crashed. Carlisle karma.
It was horrible.
I was only 14 miles or so in, averaging about 220 watts, colors and pixels were fine and slam!
The earth went blank! I didn't slip on black ice or get wacked from behind. It wasn't a pothole or slipping of the edge of the pavement on a snow covered road.
I rebooted and all was well. Something to do with Google Earth. I got side tracked and loaded "Training with Lampre" instead.
Maybe I should switch to a studded winter
tire ?