Tina i have just checked it out through XP and .NET 3.0 and i have to say it is a brilliant app :).
I have just been browsing through William Blakes note books with all his wonderfull little sketches and the two Da Vinci codex books available.
The manipulation is brilliant everything is sooo smooth, it's almost like having the real thing in front of you, the only shame was not having a mirror and a latin translator for all the twisted text in the Da Vinci books, luvz da Vinci went to a exhibition here in London Last month at the Victoria and Albert museum in South Kensington, it specifically exhibited his drawings and nothing more.
This will prove to be a great research resource when more such books become available, thanks again. LS :)