Don't bother with Build 7022 . Build 7000 is better.I had it (7022) installed for about two hours and soon after that hit the format key. I am having less problems with build 7000.My two cents.Also watch what you download; they claim that it;s build 7022 but it is only 7000.
I'm afraid that remark should be put into the realms of "Bovine Scatology" -- 7022 is much improved -- even the IE8 RC1 upgrade makes it worth while for that feature alone.
I'm not trying to flame or be nasty --but please post what you had probs with in 7022 that works better in 7000.
From what I've seen from other posters using build 7022 and including my own observations 7022 is a better build than 7000.
If you download from an "Unoffical Source" then you might not be using a proper copy of 7022.
Easy quick way to tell if you've got a proper version of 7022.
1) Bottom of the screen watermark says ......... Build 7022.winmain.090115-1850
2) IE8 is RC1 level not IE8 Beta
3) in service READY BOOST is gone.
Other minor menu stuff changes etc such as sticky notes, snipping tool, paint.
I can assure you that 7022 32 Bit (no 64 Bit version as yet) does work a lot snappier than build 7000 . There are still some issues - particularly with some sound and video editing programs and codecs but that's to be expected from a Beta and these need the manufacturers to fix them.
However you have to be a MSDN or Internal developer to get a copy (or have a colleague who works in either of these places --( the serial numbers are the same as for the 7000 builds).
Cheers
jimbo