As of this morning no theme (including Twenty-Ten) will make itself visible online when I activate it. In addition, the thumbnail image of the theme does not show in the manage themes page.
The theme was showing last night but when I woke up this morning- gone. Yesterday I had to remove ask apache password protect since it was causing a "could not create directory" error message in the wp-contents uploads file. Could this have caused the problem??
Also, yesterday I removed Multi-site and commented out the multi-site code in the wp-config file and removed the recommended "wp_" titles in the database. But, not knowing if this caused some kind of a database error, I also reinstalled a backup version of the database (that included the dropped entries) and still no improvement. Also, does not seem like a plugin is doing this since deactivating does not change this and I have very few plugins loaded that have not caused a problem at any point thus far.
What do you suggest to do in troubleshooting this?