A issue of MySQL

[Shi-Ming Chen <shiming.cv90g@xxxxxxxxxxx>]

Recently I upgraded my box from Redhat 8.0 to Fedora Core 1. There is a 
MySQL server in this box, and I backuped my_table_name.[frm, MYI, MYD] 
to a  safe place. After installing FC1, I copied these backuped files to 
/var/lib/mysql/my_db_name/, and it worked. But I lost some records!

When I use the sql command: SHOW TABLE STATUS FROM my_db_name, it shows 
that the there is *3558* rows in my_table_name, but when I use: SELECT * 
FROM my_table_name, it only shows *1816* rows!

How can I recover my lost rows?
Thanks.

--
Shi-Ming Chen