You can use System Restore to back up to before you did the installation.
You also should be able to delete the driver in Device Manager.

"Dave sim" Dave wrote in message
...
I made the mistake of plugging my Wacom pen tablet in before installing the
driver.
Vista recognised the device and installed a default driver which does not
work
The Driver installation disk will not install untill the default driver is
uninstalled.
How do i do this