careace,
Here is a pre-made file that you can use, with directions on how to add it to your server.
1. Download the file htaccess.txt to your desktop
2. Remove the “.txt” depending on what operating system you have it may ask you if you want to remove the “.txt” click yes.
3. With you FTP client, upload the renamed file to the directory where WP is installed
4. once you successfully uploaded it to your server you will then need to rename it again to add a ” . ” at the beginning of the file name so it would read “.htaccess”
if all went well, you should be able to use the media browser again..
let me know how it goes..
Cheers,
Dave