For the life of me, I have not been able to figure out what I am doing wrong and see it works in this test forum.
I created a directory called "ImagesUpld" and set to 777. I set "Attachment Storage Directory" to "/ImagesUpld" and "Full URL to Attachment Storage Directory" to "http://mywebsite.org/ubb/ImagesUpld" and get the error message when testing it.
I have entered many different combinations for Attachment Storeage Directory but can not figure what I am doing wrong.