My new P.C is coming with Vista home premium already on it.
A work colleague has just bought Vista & has had no problems with it,all his programs & devices work o.k,so far.
I don't like windows defender,so will proberbly uninstall it,lavasoft adaware is much better,& the new AVG free anti-spyware is also pretty good.
Microsoft already check whether your copy of XP is genuine,nearly every time I download from the microsoft website,it asks me to validate my copy of windows.
Anyway,my computer is being delivered tomorrow,so I'll let you know how I get on.