Laptop wakes up from Sleep mode when I remove the mouse

Question

On my new laptop the following happens:

1. I press the Power button and the computer goes to sleep. OK.
2. I unplug the cables, and when I pull the USB mouse the computer wakes up again.

Any idea how I can prevent that?

It is a Toshiba Qosmio G50, running Windows 7 Ultimate.

In order to establisg the cause, I would like to hear if anybody ran into the same problem with either Win7 on a laptop or a Qosmio running Vista or XP?

Answer 1

Go in to Device Management (Click Start/Orb, Right Click on Computer and click Manage. Click Device Manager).

Next Expand "Mice and other pointing devices".

Click the Power Management tab and untick "Allow this device to wake the computer"

Answer 2

I'll admit that I haven't used Windows 7, but in XP you can go into the device manager to control power management properties of a device. In XP, the USB mouse would have a checkbox under the Power Management tab to permit allowing the device to wake the system from standby - unchecking the box it turns this option off.

Perhaps a similar option is in Windows 7.