Since last few weeks I constantly get this error, as status bar balloon:
Power Surge on Hub Port - A USB device has exceeded the power limits of its hub port.
Due to this now I am unable to access any USB devices properly, they get disconnected intermittently.
I did quite a few things to resolve this problem, firstly obviously through the Windows help. I even tried all the things told on the Microsoft website(which essentially says is to check and update the driver) but in vain.
One suggestion, I found when I google'd was to disable the USB2 controller through the Device Manager and since at every startup the System configuration comes up complaining that it has been changed etc.(On that same site it is mentioned to ignore this message.)

But after everything I still cant solve this problem.
Any help is much appreciated.

The system is installed with Windows XP service Pack 3 and all the updates till last month.
Please let me know if any other hardware info is required.

**UPDATE**
My laptop is about 5 years old now, its an HP with Celeron 1.4G processor. Windows XP SP3 installed. All latest windows updates installed. 2 USB ports available. BIOS is HP 68DTD ver F.0A

Do I need to update my BIOS from somewhere ? or is this a hardware problem altogether?