Content Not Allowed on Prolog/SaxParseException Dead End

I have already checked the previous postings and I have already checked the hex contents of the file (which is generated dynamically using the same calls that the J2EE tutorial uses)

But regardless I still get the annoying error. This is the hex dump of prolog:

3c 3f 78 6d 6c = "<?xml"

Any thoughts? Java 1.5.0_09-b03/WinXP

[352 byte] By [jose_cornadoa] at [2007-11-26 14:50:44]