How do I enable a Toshiba Protege Z30 to access USB ports on Toshiba Port Replicator 3
I have bough a new Toshiba Protégé Z30 laptop (windows 7) and a Port Replicator 3. The port replicator works fine for my monitor but none of the USB ports work for a wired keyboard or mouse. Plugging the keyboard and mouse directly into the laptop works fine but they cannot be found plugged into the port replicator.
I followed the instructions to plug all the devices into the replicator first, then attach the shutdown laptop and boot it via the replicator. The monitor works but none of the usb ports.
The mouse is an optical mouse. I have noticed that when I boot the laptop via the replicator, for a few seconds the mouse optical red light is illuminated correctly but very quickly is turned off as the boot process continues. I assume this means the laptop is disabling the use of the usb ports on the replicator and that the power to the usb ports is off.
I have tried a number of internet searches and it seems t be a recurring problem but I cannot find a solution.
I have updated all the USB drivers and the laptop BIOS (some of the online suggestions), all with no success.