Well you obviously have a problem with your jetBook, it could be a hardware
defect or in the firmware but the reader and/or USB interface is not working
properly. You should not be having the problem you describe. You should
contact Ectaco for an RMA under the one year warranty.
That said; Calibre can work with your SD card as a removable drive of your PC,
and accomplish everything you can with "send to device". Doing it with a USB
2.0 interface, is a major advantage for that approach. Even with a perfectly
working JBL SD card reader and USB interface, I would never use it the way you
describe.
Luck;
Ken
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