Vista good for mobility? Not if you're in a domain!

The most frustrating part of using Vista so far has been a problem that isn't noticeable unless you're using a computer that's in a domain, but not connected to the network that has the domain. When using my notebook at home and I open a file/open or a save dialog box it takes 30 seconds to a minute to come up. Mark Russinovich explains in detail the problem in his blog. It's a stupid thing and I hope a fix comes out soon. This bug is a showstopper for installing on any users laptops in my organization. All the laptops I setup are in our AD domain. I'll deal with it for now, but my clients won't.