I've solved it by using the older KM636 Universal Receiver Control Panel instead of Peripheral Manager. It seems that PM doesn't support this receiver properly even though it detects it and allows you to try and add devices to it. Oh well.
I am trying to pair a Dell WM116 wireless mouse with a Dell Universal receiver using Peripheral Manager v1.6.7 but when I try to pair the mouse Peripheral Manager displays a message "Device already paired": [IMAGE] There are no devices currently paired. When I start Peripheral Manager is shows: [IMAGE] I know the dongle works because I have used it before. In Device Manager is shows as the usual Dell Universal Receiver: [IMAGE] I don't understand why it won't pair. It can't be "already paired" as PM doesn't show any paired devices. I've tried another identical mouse and got the same message. The mice (both of them) have been used before with other receivers. Is that why they won't pair? If so can I reset the mouse to make it forget any previous pairing? Or reset the universal receiver? At the moment I'm stuck with a mouse I cannot use.
Peripheral manager says "Device already paired" when I try to pair a mouse