USB Ports Dead after undock and redock W510 in Minidock Plus Series 3

Hi,
just personalized a new W510 (Win XP 32) for a user and installed it on his desk. Everything worked fine except for one thing.
I start the NB in the Docking Station with an external keyboard and mouse (original IBM/Lenovo) attached.
Works fine.
Then I undock the Notebook (there is no button or menu entry for undocking, it's just press the button to eject the NB).
Notebook still works fine.
Now I put the NB back into the dock. External LCD shows regular desktop, but external keyboard and mouse doesn't work any more. The mouse doesn't even have power (no light).
I checked every USB Port --> Dead.
If I plug the mouse or keyboard into the usb port of the NB they get power, but don't work.
If I reboot the NB, everything is fine again.
Do I have to install some special plug ins to allow undocking nd "redocking"?
Thanks
Regards
Mith
Solved!
Go to Solution.

I have this problem with my W520, with the keyboard only (the mouse works fine). I can't do anything with any external keyboard after undocking+redocking until I reboot the machine entirely.
I updated the BIOS and the Intel chipset driver as per the suggestion here and this had no effect.
I explained in more detail in this thread here: http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/T500-keyboard-locks-when-docking-or-undocki...
I hope someone can shed some light on this, because it's totally shattering my productivity

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