Many of us that have made the switch know there was a lack of support for some apps, and this is because businesses need more time to get their applications and systems up-to-date to handle the new OS.What makes things worst is that the new Vista SP1 seems slower, Blorge are reporting Microsoft has talked about increased performance in Vista SP1, but they have not highlighted the slower parts of the upgrade, like file copying. Blorge went on to say that a 2GB+ sized file takes 20% longer to copy to a local folder with Vista SP1.