Strange Scan Results

A friend of mine sent me a screen shot of results which seems odd to me. So is move to chest the right option? Or is something wrong with the Avast install?

http://www.heffy.com/SnipImage.JPG

No virus was found, i.e. no action is possible.
The error can safely be ignored (it only means that a virus database update occurred recently and the old virus database was removed just at the very moment the corresponding folder was scanned).