I am using a KVM switch for my Vista Business computer and my former XP SP2 computer as not all of the devices were compatable. I am not able to get my USB mouse to work with both computers. I am using an adapter to change the usb to a ps2 access for the KVM swithch. Has anyone experienced this difficulty and if so, how do you correct. Is this a Vista bug. At this time my work around is using two mouses.