Steve-
I understand why my "1" icon turns yellow during the tune-up.
I do a backup every time I do a tune-up and my "1" icon turns green again.
When I do a tune-up I get grays and check marks for remove unnecessary files, defragment the hard disk & check for needed security undates from microsoft.
I understand why I get yellow for check for files needing backup during the tune-up.
But why doesn't it scan for viruses during the tune-up? I always get yellow for scan for viruses and other potentially unwanted software and a line below it saying:
This task did not complete because tune-up was cancelled. I didn't cancel the tune-up.