I assume this is Vista Service Pack 2 and everything has been updated? (You can check that by right-clicking Computer on your desktop or in the Start Menu and selecting Properties). As McAfee relies on an up-to-date Internet Explorer regardless of your default browser settings, please make sure you have IE9 and that it and all its add-ons are up to date.
You need to install McAfee from your online account, not that CD, so uninstall whatever you have now via Control Panel > Programs > Uninstall a Program then run the MCPR cleanup tool from HERE, reboot and go to your online account to get the latest version (see 'My Account' at top right HERE). Login there using your registered email address and password.
Greetings and many thanks Ex Brit, yes everything is up to date including McAfee when I check for updates.
I will follow you instructions and report back.
OK good luck. I'm about to sign off for the night so will talk Friday if needed.
Absolutely straight forward and fixed, thanks again for the cure and the quick turn around
Glad it's fixed.