Irritating but non-important issue

Ever since I got my droid and synced it up with my Facebook, the images from Facebook show up as the contact picture which is pretty cool. However, I have an issue with certain numbers showing the wrong picture. For example: When I call my wifes droid it shows her correct Facebook Contact picture but when I call her work number it shows my nephews Facebook profile picture. It does it on other contacts also. I looked everywhere on the forums and couldn't find any thing similar to this. If it is out there let me know, maybe I was searching wrong.

BTW....this site is the best!! It's my addiction ever since getting my Droid back in March.

 

Thanks. Does Facebook Sync connect all your Facebook contacts or just the ones you want?