I had done that with the XP configurations, on the basis if they hadn't found it was a problem in the umpteen years since XP launch, it wasn't going to bother me.
I let Win7 update itself on the basis it was still new. It just stopped being "new"
I'm giving BT another few days before I elevate my complaint. The Customer Service folks I've spoken to have all (UK and India) been very friendly, very helpful, very reassuring, and totally unable to communicate with the mystic beings known as Openreach who actually do stuff.