RTFM Permissions Problem?

I am having a tough time troubleshooting RTFM. Here is how I have it
working: I created three groups with rights as follows:

RTFM Authors:
CreateArticle
ModifyArticle
SeeClass
ShowArticle
ShowArticleHistory
ShowCustomField

RTFM Managers:
AdminClass
AdminCustomField
AdminValues
CreateArticle
ModifyACL
ModifyArticle
SeeClass
ShowACL
ShowArticle
ShowArticleHistory
ShowCustomField

RTFM Users:
SeeClass
ShowArticle
ShowCustomField

Here is the issue: RTFM Authors and RTFM Managers can create articles no
problem, but ONLY superuser can read any articles at all. Everyone else
gets the “RTFM ERROR: Permission Denied” screen.

Any ideas? Thanks for your help!

What RTFM release?