Excluding a directory

I want to exclude the fred directory from a copy, directory is FRED. I tried two different things:

1) On the SYNC tab I right click FRED directory and exclude it by name, I refresh and FRED still appears, same colors as other dierctories

2) I create a rule, folder to exclude, and type FRED as parameter, same behaviour

I am using TOUCAN 2.1.1 and the problem is the same on both VISTA and XP

Thanks for your support