Perplexed

Something funny, (odd, not mirth inducing at all), is happening.

Yesterdays, and todays photo have lines across them. And I don't know why. Some research on t'net pointed towards a sensor problem. I reset to camera defaults, switched back to raw, and they're gone.
I know, I know, they're gone. What's my problem your asking?
Well I don't like mysteries so if anyone has an explanation I would be most appreciative of hearing it.

Ah well. Until tomorrow....