Has anyone else experienced issues with functionality not working properly for unauthenticated users?

I have a forum set up with the security to allow "Unauthenticated Users" the following functions:

View    Read    Create    Reply    Attach    Poll   

Attaching files:

When visiting the site anonymously, the attachments section does show up, and I can browse to and upload an attachment.  The tab then shows "Current Attachments (1)" just like it does for authenticated users, but the file information doesn't show up in the grid in the tab (the column headers don't show up either: File Name File Size Create Thumbnail Insert Image Display Link? Delete).  Submitting the post results in the text being posted but the attachment disappearing.

Previewing the Post:

When not logged in, if I click the "Preview Button," the preview box appears and then a JavaScript dialog with the message "An error has occured" (sic) pops up.  After clicking Ok in the dialog, the page refreshes and the post is lost (user is presented with blank subject, name, and body fields).

Both functions work properly for authenticated users in the same forum.

These are not bugs. Those functions are simply not available for unauthenticated users. We will make sure those options do not appear for anonymous users regardless of how you configure the forum.