I would normally do that, I didn't this time because when the D630 turned up it was remarkable clean, without all the usual crap installed. Notably it had the same versions of various drivers installed as were current on the vendors sites, rather than the usual set of Dell special versions.

Apart from this issue I have no issues with this Dell install, surprising I know. It looks like this issue isn't a Dell one, there appear to be plenty of people out there with this Intel card in non Dell machines who had, but didn't appear to solve this issue.