New Mac Mini USB problem

I have a brand new Mac Mini (December, 2011, 10.7.2) as well as an older Mac Mini (circa 2005, 10.6.4).
I bought a new GearHead USB wireless mouse to go with the new mini.
The mouse works fine on the old Mini (and also on a Windows PC).
On the new Mini, the mouse works until the Mini hibernates or powers down. On wake-up, the mouse doesn't work until I unplug and replug the USB transmitter.  This is the case on all USB ports on the Mini, as well as on the keyboard and monitor USB ports. It doesn't matter which port I use or which port I unplug and replug into - I always need to unplug and replug the transmitter to get it to work after power- or hibernate-cycle.
Note that I have also tried a Logitech USB wireless mouse and an Apple Bluetooth mouse and they both work fine on both the new Mini and the old Mini.
The problem is only occurs between the Gearhead brand USB mouse and New Mac Mini (10.7.2).
I assume that the problem is that the mini is powering down the USB port and not refreshing it after power cycle, until I unplug and replug the transmitter. Alternatively, I suppose, the transmitter could be asserting itself early in the boot process before the Mini is awake enough to hear it.  In either case, it seems that the band-aid fix is a command-line to force the OS to refresh the ports, but I can't find any reference to such a command.
Thank you for any help you can provide.

Hello,
I assume that the problem is that the mini is powering down the USB port and not refreshing it after power cycle,
To me it seems like when the usb is powered down the trnasmitter loses the signal with the mouse, i think your mini is perfectly fine, even though the mouse works fine on the old mini I think its how the transmitter handshakes with the new mouse on the new mac mini. Do you have a new mouse of the same brand that you can test and see if it has the same issue...
If so then it forsure the transmitter... not the mini... else take your mini in for health check.
good luck, let me know how u go...

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