I have now installed Intel Rapid Storage Technoloy 9.6.0.1014 on both Windows XP Pro 32 bit and Windows 7 Pro 64 bit partitions and all seems to be well.
I used Windows Control Panel to uninstall existing user interfaces to MST or RST so that the installation of 9.6.0.1014 also installed the 9.6.0.1014 Windows user interface on both partitions.
All now seems to be well and that seems to resolve the issue.
Many thanks.