Finally, because this is beta software -- and that's easy to forget, what with the plethora of software that companies like Microsoft, Google, and Yahoo soft-launch using previews these days -- there is a long list of known problems. (No word on how many unknown problems.)
The Vista Beta 2 Release Notes may make your eyes glaze over, but they're well worth browsing, or at least printing out for later reference if necessary.
No wonder Microsoft tries to wave off users.
"Before you decide to use Beta 2, you should feel comfortable with installing operating systems, updating drivers, and general PC troubleshooting," the company says on the Beta 2 download page. "Some risks of using beta operating systems include hardware and software incompatibility and system instability."