image upload woes

I have code which attempts to upload some files and create thumbnails. The same code on one server works ok, the same code on another server throws an error everytime I hit submit that says "The document contains no data"...it appears to be a javascript error. It is not an error that I am throwing. Has anyone ever had this problem? Thanks, Eddie WARNING: The information contained in this message and any attachments is intended only for the use of the individual or entity to which it is addressed. This message may contain information that is privileged, confidential and exempt from disclosure under applicable law. It may also contain trade secrets and other proprietary information for which you and your employer may be held liable for disclosing. You are hereby notified that any unauthorized dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify HIPAA@echoman.com by E-Mail and then destroy this communication in a manner appropriate for privileged information.