you renamed a folder that an application that you run on your computer uses in some way.
Correct so far?
Launch the application and when it asks where the folder is, tell it.
Launch the application and in its preferences, tell it where the folder is.
I do love these guessing games, I wonder why you did not feel it necessary to tell us what application you are having problems with.
Is there a good way to reset the path to a renamed folder in OS X (Leopard) Applications? The first time I tried it so many apps lost their way I had to give up.
Incidentally, when I tried a search (using a Mac-oriented website's proprietary google-search) with the words "reset path after folder rename" I was told I might be a virus and not allowed to continue...