Wacom drivers will not install
I am running OS 10.10.1 on a MacBook Pro (2.4 GHz Intel Core i7 ). I recently purchased a Wacom Intuos Pro (Medium) but I have been unable to install the Wacom drivers for OS 10.10 (Driver 6.3.10w2). The installation process gets as far as the validating stage and I then get the error message "The installation failed. The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance." I called Wacom support and they advised me that my operating system was "corrupted" and that I should either create a new user and try installing the driver under that user or re-install the operating system. I am reluctant to do either unless I am satisfied that the problem is with my operating system rather than with Wacom's driver. Can anyone tell me which it is likely to be and what I should do about it? Thanks.
MacBook Pro, OS X Yosemite (10.10)