FTP Setup problem

Just installed the plugin today. Easily connected it to my existing Mailchimp account. 'Everythings Chimpy!'

When I try to compose, it asks for my FTP credentials. I established an account on Bluehost. When I put in all the information, including the path as shown by Bluehost, I get an 'invalid path' notice everytime.

I am only including the path from the root directory forward. I've tried multiple ways and even tried using other subdirectories but I get the error each time. I would appreciate any guidance you can give. Is there a better guide for this other than the help function in the plugin?
Thanks!
ed