Kaspersky always scores far better in all the independent test over both avast and AVG and I have good things to say about it after rolling it out across all computers where I work earlier this year.
But as you say Carlton, this isn't a discussion about which is the best AV available.
Whatever you have as long as it's working properly it should not result in windows warning you that you have no AV and turning off the warning without either fixing the problem, or being 100% sure that it's just a false warning is a very risky thing to do (if the warning is genuine and your AV is not working and you turn the warning off then you may as well just uninstall your AV and have none installed for the good it will do)
The first thing I'd do is goto add remove (or programs and features) in control panel, remove every single thing you can see there that is anything to do with the virgin security and also look for anything to do with your previous AV software and make sure that is removed too, then restart the computer and re-install the virgin AV software again from scratch and see if that cures the warning.
(if you want to test if your AV is working you can try and download the following file, it's a harmless virus test file that should trigger your AV software if it is working
http://www.eicar.org/download/eicar.com )