Attaching "bad" Update file
"Have you tried closing Dreamweaver and deleting the cache file"
YES, in fact I've done that several times (as suggested by other WA support folks because of problems I've had with eCart and dataAssist). I've also deleted all my WA extensions and reinstalled them several times (getting to be a real time consuming pain in the neck).
Attached is one of the many "items_Update.php" files I've created (none of which actually "update"...)