I am running Vista OS. I have an HP Photosmart C4100 printer/scanner/copier that recently is not allowing me to scan to my computer. The installation CD for this printer is only for up to Windows XP. I remember back that there is a way to update this so it will be compatible to Vista but can't remember how to do it. I guess I need to uninstall and reinstall this software so I can again scan to my hard drive. Any help would be much appreciated. Thank you.