unable to scan cab archive is corrupted???

i get this unable to scan cab archive corrupted on a resently new install as of a few days of windows xp pro how could they be corrupted see link for a detailed pic of this problem
http://img376.imageshack.us/img376/186/avastzu3.th.png

click pic for bigger picture

Don’t worry about it, the archive might not be corrupt, but avast might not be able to unpack it to scan the contents.

ok thanks will ignore it

I can’t really read the filenames, even on the bigger image. Could you post a few of them maybe?