MS tech support says it's a virus attack?

So I chatted with Microsoft about the occasional atikmdag.sys error (AMD A6-6310 APU w/AMD Radeon R4 1.8GHz 8 GB 64bit) I get when system resources are running @ or >100%. The agent said it was from a virus attack. I’m not kidding, even though this may seem like a joke, and it sort of is (on me by MS) Any thoughts?