Here it goes:
I got a motherboard ASUS K8N + Sempron 3100+ + Windows XP SP2.
The 4 USB built-in within the motherboard work perfectely, but there is a frontal panel USB connector, which comes with the MB, that I canīt wonder how to configure.
When running WinXP, I connect a devide - a pen drive, in case - and the pen drive turns on, but WinXP gives me the following:
"USB device was not recognized"
Then, there is a "Unknown device" on the Device Manager listed under the "USB controllers".
If I plug the same pen drive on the rear USBs, it works fine.