Image or image? - Different upload paths

Finally got image uploading working (mostly). The problem now is that the filemanager uploads images to: images/userfiles/Image
whereas in the image pop-up (in the 'upload' tab) uploads to:
images/userfiles/image

.. or maybe its the other way around ... whatever
lets see .. should I spend another 3 hours trying to fix that? ...
grrrrr

Where to change that single character - from "i" to "I" in "image"?

Thanks to anyone that can help me preserve my remaining thread of hair.