ImageMagick is installed but when I try to upload an image I get:

Unable to execute: "/usr/bin/convert -antialias -scale '110x110' '/home/httpd/vhosts/jawz.us/httpdocs/uploads/pope.jpg' '/home/httpd/vhosts/jawz.us/httpdocs/uploads/pope.Thumb.jpg'", error: , return var: 127

Any ideas?

Thanks for ...