AVG Free Edition question

I have downloaded AVG Free Edition to try out on my Vista machine to see how
it works before upgrading to the Pro Version. I keep getting a message in
my IE bottom toolbar that "a program is trying to display a message but
cannot because it is not 100% compatible with Vista". So I go to the
desktop where the AVG test centre is already open, I close it, I go back to
my work until a few minutes late when I receive the same interactive note
that a program is trying to display a message, etc. etc.

Has anyone else experienced this? Thanks in advance for all help.
--
Tony Vella, Ottawa, Canada
http://tv-stamps.shorturl.com