I wonder if one of the admins or mods would be willing to tell us what happened this morning? I only wonder because I am curious and I too have had issues like this before with my website. In fact, I cause my entire website (sub-domains and all) to give a 500 server error once because I modified a .htaccess file and accidentally inserted a singe incorrect character. It took me hours to figure out what I did and finally I decided to try changing all of my .htaccess files to .htaccessold and lo and behold, my site came back to life immediately!
I guess we all live and learn, but I just an curious as to what happened today. Mainly because at first it was 404 errors, then 500 internal server errors, and finally (just before the site came back to life) it was asking me to login to a directory (I cannot remember the exact name). So, I wonder if there was a .htaccess file problem or a server problem.
Anyways, if and admin or mod would be willing to tell us what happened this morning, I would be satisfied.