I clean installed, as im now dual booting with 98SE. Didnt have win2k on the system as i tried it when it came out and didnt like it that much cause it was a bit of a hog/crap for the games i played. However, ive had a complete change of heart with Whistler - its here to stay and in a few weeks the phrase "Win 98 has LEFT the building.." comes to mind

Might wait till Beta 2 comes out though, cause it will neccesatate a reinstall and so i may as well do it all in a one'r.
As for stability, i did point out that it seems to have somthing niggling at it which can bring it down, but ive not heard other complain about this so it could just be somit that im runnning, and/or a driver issue. I cant really compare to win2k, cause i didnt leave my machine on 24/7 back then, whereas i do now. Win98 was actually pretty stable for me and usually lasted a couple of days before *I* rebooted it cause of its sh*t memory management

However, despite my little lockup problem, i usually get a few days out of it and once had it up for 5 days - helluva respectable for Beta 1 in my opinion. Now, just gotta get some more RAM - i waited, and its dropped another £6, but now is the time to act
All in all, i have to say, Way to go M$. Dual boot if you have to, but get it slapped on there now, im sure she will purr like a kitten on your machine.