Not even sure how to describe this problem, but I will try.
I upgrade to 2.7 and everything works fine.
BACKGROUND: The wordpress install is in the rootdirectory. (ie http://www.example.com, not http://www.example.com/blog). Also within that root directory is a secure directory (www.example.com/secure) which has some files that edits/pulls data from a different MySQL database (not the wordpress database --- it displays some tables of info on certain pages).
Going to http://www.example.com/secure and using the directory password has always worked to get to these forms which we had written by another person.
PROBLEM: Now that I have upgraded the WordPress install to 2.7, when I log into the secure directory the form loads fine. However, when I enter any criteria that pulls from the different MySQL database to return a table, it redirects me to the homepage.
QUESTION: Is there something new about the way that WordPress 2.7 does the .htaccess rules that would impact this directory? Anything I can do to tell WordPress to just ignore that directory completely?