windows 7 - Laptop wakes up from Sleep mode when I remove the mouse

Possible Duplicate:
Notebook wakes up after disconnecting mouse

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

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"