DavidR,
Thanks for your help! As you can see, I am not adept with technology. I did load avast on my computer and registered successfully, but when my husband got a new laptop last week with Vista, I just wanted to be sure that I did not mess things up for him before he even got going on his new machine! I figured it was OK, but thought there might be something about the different processors that would cause the program to behave differently than it should. Now I'll bravely move forward!!!!
Kindest regards,
Alicia