external keyboard and mous trapper doesn’t work in docking station

Hi all,

I suddenly got this strange problem on my Fujitsu laptop running XP. It have worked for more than a year, but suddenly stopped working. I have 2 partitions on this labtop. on My primary partition i have the company version XP and on the sec. partition i have a clean XP. The company version have this problem, and it seems that all the power for the USB ports are being used. The XP version on the sec. partition is working fine in the same docking station. Both XP version loads the same drivers.

any good ideas to what can be wrong ???