They are both very minor flaws. Considering you had one Turion that made it through AMD with a chip, and now two 3700+, I'm wondering if it's really worth returning. I'd understand maybe one or two out of a hundred slipping through the cracks, but considering you've bought about ten processors and three have had these flaws, I don't think AMD would ship them out unless they were 100% functional.
What I'm wondering is if small chips like this are very common, it's just that we don't realize it because most A64s are covered with the IHS. For all we know most A64s have minor imperfections like this, but because it doesn't effect stability people don't even realize it.
I'd say wait and see what AMD says. :confused: