Some time ago, I reformatted a Compaq laptop and reinstalled WinMe for a friend. There was nothing but problems as the reinstall wouldn't work for some obscure reason - I think it was due to some special Compaq formatting of the HD. Can't remember too clearly now. Just remember that there were many problems doing what is really easy on a desktop PC.
Now, another friend has asked me to format and reinstall his Acer Aspire 4720Z laptop. It currently runs WinXP Pro but he wants Vista. Am I going to run into problems if I simply run the Vista DVD from boot up and do an install as you would on a desktop PC?