move to folder rule sends to wrong folder
 

I use outlook 2003 to download mail from 5 pop3 accounts. I have
5 rules setup, each examines the account the mail came from and
then routes it to the appropriate folder under my inbox. (a
folder exists for each account). 4 of the rules work perfectly
fine but one insists on reverting so that it points to the first
folder (alphabetically) when i hit apply.

as an example...
account1 - folder1
account2 - folder2
account3 - folder1 ... this should point to folder3
account4 - folder4
account5 - folder5

I've tried deleting the folder and rule, however as soon as I add
them back it reverts to the same behaviour.

Any ideas?