I have had Vista on my Dell desktop for more than 18 months now, since buying the Dell, and have been using McAfee also got via Dell with no problems, until in the past few days I keep getting a yellow circle with exclamation mark in it over the McAfee icon in the tray at the bottom of  the screen. When I open, there is a message saying my computer is not protected, and that I have not scanned it with McAfee for more than 30 days.  A note says I last scanned on 24/9/08. Yet I did a full scan today, and yesterday, manually. The scan was completed, I was told five items were found but they are not critical and no actoin was suggested. Is there some newish issue with Vista and McAfee? I tried getting technical help via the McAfee website, but it was pretty useless, and first technician got me to download a patch which did not fix, while the second sent a document via e-mail saying I should perform a DOS virus scan in Windows Vista. I am too busy to do this for the next few hours as I have an article to finish. But anyway, why am I being asked to do a DOS virus scan to try to fix my problem? Does  this mean Vista no longer works properly with McAfee virus scan? The technician gave no explanation whatsoever. All that I know is that McAfee is not updating properly to record the fact that I have used it to carry out a full scan.