Thank you Hoarach. You've eased my mind -- I noticed the same thing.
Why did that ease my mind? Well, ya see...last summer my wife had me planting some pines, and in the course of digging one hole I hit...cable. Not power cable (cause after all I'm here typing this!) but cable TV/internet cable. I didnt cut through it, just enough of a ding to get through the insulation and see a little silver. I did the guy thing, fixed it myself with careful and generous application of electrical tape. We picked a new place for the tree, and life went on.
Now this weekend its been raining a lot. And I've been getting discos and an awful sinking feeling....