Rebuild All Thumbnails problem
 

After importing from Coppermine, I get the following every time I try to rebuild thumbnails. I get similar errors when trying to create missing thumbnails. Watermarks option is turned "off" (under Watermark Options).

I'm using GD2. Any suggestions?

redownload the build and upload the main php scripts and templates not config files

Followed your instructions -- re-downloaded the app, re-uploaded the files in the main directory, except for the two config files and the install.php script and tried again. That worked! Looks like the original set may have been downloaded / uploaded in binary or ascii (or whichever way it wasn't supposed to!). So now I'm set. Thanks for the help!