The price is right on this KVM switch, but that's where it ends. If you switch back and forth between two running PCs and at least one is running WinXP, it won't find the mouse when you return to the WinXP machine. DLink support suggests using a non-scrollwheel mouse (which is a poor fix), but even then, with a standard two-button PS2 mouse, it still won't activate the mouse once you move away from the WinXP box and then return.Look elsewhere for a KVM switch.