I have a notebook with three USB ports. One for ADSL modem, one for USB hub with external power shared for a mouse and an external harddisk and the last one is connected to the same hardisk thru another cable (it needs two separate cables in order to get enough power).
I found with this configuration all the external devices worked great until recently I reinstalled Windows XP Pro sp 2 from the scracth, including all the necessary drivers from the original disks that came with my notebook. And the problem came when I connected the harddisk to the notebook, it didn't work. Desktop taskbar displayed message as if there's a power surge in one of the ports.
I have tried to connect to the devices via different port combination and also restart the notebook, but nothing seems to help. Any advice or assistance anyone can offer would be greatly appreciated. Thank you kindly.