Problem with USB-ports and Bluetooth

Hi,

I got a Toshiba Tecra S1.
All of a sudden my peripheral hardware on USB-ports is no longer recognized
(webcam, external Harddrive, memory stick). I can see that the memory stick
gets power through USB.
Simultaneously my bluetooth is nog longer functioning.
I removed the bluetooth from the device manager. When I try to re-install
the BT-stack, it "hangs", and does not finish installation.

Network is functioning perfectly, just like the rest of the laptop.

Win Xp with SP2 is the platform, and lately I received many updates.

What can I do to solve this problem?

Wim