Gosh, I am really sorry to hear that. I know how frustrating tech problems can be and it does seem that they come in threes...!
Since you are on the original firmware, I would try the firmware update to v15 anyway - would not hurt anything in these circumstances...
http://www.jetbook.net/upgrade_lite.php
If this fails, hope you get your JBL fixed by Ectaco and it doesn't cost you "an arm and a leg" for shipping.