Nitroshift _ have already tried that with removing cable and also at same time, discovered that it is NOT activated via "LAN" however, from a page in MS tech` on various issues with power management discovered that if one activates the properties of the "mouse" in device management to make mouse wake up PC it appears to have solved the problem with "Standby" coming out of it`s mode unexpectedly. Of course there is a sting to the tale - hibernation is still an issue since the properties in mouse/power only refer to standby NOT hibernation which is to be expected. But then again, we have progressed 50% which is better than nothing I guess - back to the drawing board. Cheers