Vista - Missing Members from Goup Contact file in Windows Mail

I have a group contact file that is suppose to have 1143 members in it. I hover the mouse over the file and it tells me that there are 1002 members. I then click on the file and it tells me there are only 141 members. Add those two numbers up and you have the correct amount of people that are suppose to be in the group. I recently had to copy the whole contacts folder over to my WD Passport because Toshiba told me I needed to reinstall Vista because of a problem with startup. After all that happened and I got it back up this started. The file was fine before this. Just tonight I looked at the file in the contact folder and it says it's 21.9 KB but the file I still have on my Passport is 309KB. Someone please help.