I suggest you to uninstall CC05 and wait for the update. However, uninstalling won't solve the problem, so you have to delete the "D.Squads" folder in my documents.
replace your data folder with the one in your CD1...
There's a folder named "D.Squads" . This is the CC05 folder. You have to replace it with the original, which is in mydocuments\fifa2005\temp1\
And stop using CC05. Uninstall it and wait for another version.
If the game still doesn't work, reinstall it.