The beta has never been specified to work correctly for multiple profiles on
the same machine, even if they are all administrators.
I don't have an explanation for why the experience with build .615 is
different from previous builds, but since this usage isn't within the spec
for the beta product, I don't think a lot of resources are going to be
expended digging into it.
I'm sorry that folks who have found this to work previously are now finding
that it fails, but I'm not at all sure whether this is due to changes in the
beta code, or simply the underlying issue catching up with your install.
I realize that this sounds pretty weak, but the nature of this beta--where
there are constraints on fixing issues with beta1 in favor of work on beta2,
makes this kind of response necesssary more often than I'd like.
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