[chrishajer]

If you have access to php or apache errors, or can display errors, I think it will be clear what the error is. Sounds like some image processing function is not available, so the unsharpmask.php file generates an error and that goes to the browser, before the regular output. Then the output comes, but the “headers were already sent” and it can’t continue.

So what is the actual error message that is displayed, the full message?