The only errors I see are "file does not exist" errors looking for images. I guess Apple has a broken link somewhere.
[Tue Mar 05 21:01:52 2013] [error] [client redacted] File does not exist: C:/OpenSA/Apache2/htdocs/apple-touch-icon-precomposed.png
[Tue Mar 05 21:01:52 2013] [error] [client redacted] File does not exist: C:/OpenSA/Apache2/htdocs/apple-touch-icon.png
Many of these, unfortunately. Maybe I'll just go find those and put them in my htdocs folder
Not relevant to the log in errors, though. I don't see any errors that could be related.