Due to licensing some National Teams don't have proper players (Holland and Germany for example) To get rid of this go to "c:/program files/sports interactive/football manager 2007/data/db/700/lnc" once there copy the file "fake.lnc" and place it in a safe place as backup, then delete the file "fake.lnc" and when you start a new game the contries effected will have the proper squad. All this file does it put a "mask" on the national teams effected and once you remove it it gets rid of the mask.

Note: You have to start a new game for it to take effect.