Time permitting for both of us I'll be looking at it tomorrow.
At the moment I know no more than in the first para. I'm not even actually certain the the MS updates and the crashes are related though I'll be considering that as a possibility.
I've got this vague feeling that I've very recently seen something about one or more recent Windows updates causing problems - whether crashes or other I don't know.
Does anyone know of problems with recent Vista updates causing crashes/BSODs?