I have updated the drivers for the Intel 82801ER SATA RAID Controller to
5.5.0.1035. I simply cannot get Vista Ultimate to install- it keeps telling
me that the drivers are incompatible. From what I can tell, people using the
beta versions and RC1 could get it to work, but here in the final retail
version I cannot get it to work. Anybody else having this problem?

I do not want to risk a clean install as I don't want to end up with a
paperweight.

If it matters, I'm using a basically stock Dell XPS Gen 2.