Open Device Manager in Control Panel, doubleclick your USB Root Hub(s) and
set the Power Management tab to not "allow computer to turn off this device"
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Mark L. Ferguson
..

"Dermot" <Dermot@discussions.microsoft.com> wrote in message
news:E248B278-2155-48D6-9CFA-1A7F1D71E2C1@microsoft.com...
> My Laptop
> DEll Inspiron 1520
> Windows Vista Home
> 1GB RAM
> Celeron 1.86GHz
>
> When watching moives my mouse disappears.
> If I use the CTRL key to locate it, the circle indicates but cannot get
> the
> mouse to return without shutting down.....powering off!
>
> Please advise