Thanks very much, Xiaobaitu, but I never applied to reopen my ca

here is my detail:

10/1/2005 Filed 140/ 485
12/28/2005 I-140 approved
8/15/2006 Filed 485s for my son and my wife
9/1/2006 Receipt of 485s for my son and wife

then I noticed they updated my case status on-line, the get this letter

thanks very much