AVG. Hit and miss with SP2

Hi Everyone, Getting busy around here ain't it?

SP2 Fails to see AVG on 2 out of 3, another SP2 niggle

I have installed (the same) SP2 onto three computers now, all using AVG v6 (Free) anti-virus.

On one XP noted that AVG was all present and OK,and on the other two, XP now pops up a warning every 15 minutes telling me that they are unprotected, but they are! just the same as the first one is.

This is driving me crazy, but I can't see any difference between them to account for it. Has anyone else experienced this?

I have tried uninstalling (Works fine) and reconfiguring etc. but no change.

Gizmo

 

I've had it happen as well. Though, uninstalling and re-installing, always worked for me.