The error mysql could not fetch schema table status occurs when I try backup or list database tables using MySql Administrator.
I did some research on MySql Bugs (id=28140) and also MySql Forums (http://forums.mysql.com/read.php?34,169966,170024#msg-170024). Their solution talks about McFee.
Actually I rent a Windows 2003 VPS host and I don't have any anti-virus installed. Do you know exactly what is it?
The mysql bug 28140 has two solutions, actually; one of them deals with McAffee, but the other says that it can occur if your TEMP or TMP environment variables point to a non-existent directory, or one that mysql does not have access to write to. Have you tried that?