XP 64 Blue screens

I have tried to install CIS, it starts ok, then I get the driver screen, I click on continue anyway and it carries on, then it pops up again I click continue anyway again and then it blue screens and restarts. Then when it reboots, it asks for the location of a driver… Its the latest x64 version, and I have no idea why its happening. I have also got it on Vista (x86) and it installs and runs fine. Any suggestions??