I have been receiving lots of emails from new TUMPA users. Your TUMPA may have incorrect EEPROM settings (probably FTDI's default EEPROM settings, interface is detected as 2 COM ports - vendor_id=0x0403 product_id=0x6010).
There may have been a problem while flashing FTDI settings to TUMPA. Furthermore, It may be possible that FTDI chip got erased by heavy X-RAY or electromagnetic field in mail processing, too.
Please use FT_prog to change incorrect settings;
http://www.tiaowiki.com/w/How_to_enable_virtual_COM_port_on_TUMPA
The FTDI template files for TUMPA/TUMPA_Lite can be found on ;
http://sourceforge.net/projects/zjtag/files/misc/FTDI_templates/