It's possible Brighthouse, whilst keeping VirusScan up to date, may be using an older version of the software, something unfortunately McAfee can't do anything about except hope they pass through general software upgrades promptly. I'm never quite sure why ISP's and PC makers and other 3rd parties hang on to improvements for so long, but unfortunately they do.
That all said, it is feasible that the problem has crept back into the system, although I haven't seen it myself, and I think perhaps you should open a case with Technical Support. It's free and available via phone or online chat throught the link in Useful Links at the top of this page.
If they can't fix it let me know and I will make this a subject for our next conference call with McAfee on Monday the 15th.
Thanks, worked good on all the computers. Sorry thank you is so late.
Glad to help. All the best ;-)