I have a problem with my Microsoft Wireless Desktop 3.1A, running an Optical Mouse 2000 and a Multimedia Keyboard 1.1. The driver is the latest from Microsoft.
I get random freezeups - it seems like the receiver stops working as both mouse and keyboard stop responding simultaneously.
It tends to happen soonish after boot (within a few minutes) or not at all (cross fingers).
I've tried putting the usb in other ports, same result. I've looked in Device Manager, no conflicts. I've looked at system reports but nothing ever shows up - except that I've had to force a reboot.