I've just installed assets 205 on EE 255 and am having a strange issue. the regular file manager works fine but the assets view shows blank boxes for all of the images. It has file names, sizes, and dimensions, but no other attributes and no previews. File manager and uploads work fine without Assets, and assets is uploading images but only displaying blank boxes. when I switch back to the regular file manager, the images are fine. any ideas?
I've just had a similar issue which, given the necessary permissions, Andris solved for me by adding an assets_site_url config variable to config.php to point at my EE web root index.php. (Thanks, Andris!)
I'm guessing this was necessary because my system is renamed and above web root (don't think it was a permissions issue).
Andris, feel free to add to this :)
Post edit: seems my issue was to do with the lack of a DirectoryIndex directive coupled with the rewrite rule for removing index.php in my .htaccess, and the consequent failure of Assets ajax. In other words, a properly configured DirectoryIndex directive negates the need for the config variable.
Hope this may help someone.