|If your laptop has USB 2.0 ports|
- some bioses have a setting that can disable USB 2.0 support - it may not be called that - make sure all USB controller related settings are enabled there.
- if you have re-loaded Vista, you must install the main chipset drivers for your laptop in order for the operating system to be able to recognize and install the drivers for the USB 2.0 support.
If you haven't re-loaded Vista the main chipset drivers or the the info about them may be corrupted - load the main chipset drivers again.
The main chipset drivers are probably in the software downloads for your specific model on the laptop manufacturer's web site, however, sometimes brand name system builders DO NOT have the main chipset drivers listed in the downloads for your model - in that case you must go to the maker of the main chipset's web site, get the drivers, and load them.